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This document describes the plans of the U.S. Spectrum-X Gamma Coordination Facility (SXGCF) for collecting, archiving and disseminating data from the Spectrum-X Gamma mission.
Spectrum-X Gamma (SXG) is a large, satellite-borne astronomical observatory, with scientific instrumentation spanning the energy range from extreme ultraviolet to gamma-ray. It is being developed under the auspices of the Russian Space Agency, with instruments contributed by research groups in a number of European countries and the US.
SXG will be placed into high Earth orbit by a Russian Proton-2 launch vehicle. The initial orbit will be highly eccentric, with a 4 day period, ~ 500 km perigee, and ~ 200,000 km apogee. Useful x-ray observing time will be ~ 3 days per orbit. Circularization of the orbit will lead to an ~ 40,000 km perigee after 2 years.
After various operational and viewing constraints are taken into account, it is expected that ~ 80% of the sky will be accessible at any time. However, there will be a region of the sky never accessible to SXG. This region will be ~ 30 °×30° , and will change slightly as the orbit evolves. It will be located at -40° £ d £ -10° , and, depending on the choice of launch parameters, may be placed at any Right Ascension.
SXG operations will be managed by the Lavochkin Association, Moscow, and IKI. There will be one ground station contact every 18 to 30 hours, with a maximum of 10 separate pointings between contacts. However, fewer pointings between contacts are anticipated during the first months of operation. In addition, there will be a limited ability to execute raster scans during single pointings. It is expected that the absolute pointing accuracy will be \simless 2 ¢ in R.A. and Declination, with a pointing stability of ±2.5¢¢ per minute. The accuracy of the reconstructed attitude solution will be \simless 35¢¢ .
After ground station capture, data will be transmitted to IKI for processing and distribution. Observation data products will include instrument science and engineering data sets, satellite orbital elements, attitude solution, instrument command timeline, and a sub-set of the spacecraft engineering data relevant to the instrument in question.
The scientific instrumentation for Spectrum-X Gamma is summarized here. Additional details may be found by visiting the SXGCF web site at http://hea-www.harvard.edu/SXG/sxg.shtml.
The SODART system consists of twin, co-aligned, thin-foil, high-throughput x-ray telescopes, FM1 & FM2. Each telescope has a spatial resolution of ~ 3¢ (HPD) and an on-axis effective area of ~ 800 cm 2 at ~ 6 keV. FM1 and FM2 operate independently, and are each supported by four focal plane instruments mounted in movable sleds.
The instrumentation includes three imaging proportional counters - the Low Energy (0.2 - 8 keV) Proportional Counter (LEPC) and High Energy (2 - 25 keV) Proportional Counter (HEPC), developed by DSRI, and the Focal Plane X-ray Detector (FRD), a ~ 2 - 25 keV detector developed by IKI.
Higher-resolution spectroscopy may be accomplished with the Silicon X-ray Array (SIXA), an array of 19 solid state detectors, each similar to the Einstein SSS, arranged in a hexagonal pattern. SIXA is sensitive to x-rays from 0.5 - 20 keV and has an energy resolution of ~ 3% at 6 keV. SIXA is part of the focal plane instrumentation for FM1.
X-ray polarization studies of bright, accretion-powered x-ray sources, radio pulsars, and supernova remnants may be carried out with the Stellar X-Ray Polarimeter (SXRP), developed by Columbia University. SXRP is part of the focal plane instrumentation for FM2.
The Objective Crystal Spectrometer (OXS) may be maneuvered in front of FM2. The OXS is a large, flat Bragg crystal panel that will allow high-resolution spectroscopy ( E/DE ~ 100-1000 ) in four energy ranges, from 0.2 - 0.285 keV, 0.6 - 1.2 keV, 2.5 - 5.0 keV, and 5.0 - 10.0 keV. The OXS is developed by DSRI, the Max-Planck-Institut für Extraterrestrische Physik, Aussenstelle Berlin, and IKI.
Ultraviolet coverage is provided by TAUVEX, an array of three 20 cm diameter Ritchey-Chretien telescopes, developed by Tel Aviv University and the Israeli Space Agency. TAUVEX images a 0.9 degree field in the UV band from 140 nm to 300 nm, with is 6-8 arcsec (FWHM) resolution, depending on the spectral band.
The filter complement consists of a broad-band filter, which provides a blue cutoff for wavelengths shorter than 200 nm, three intermediate band (40 nm) filters with central wavelengths near 160, 210, and 260 nm respectively, and two narrow band (10 nm) filters centered at 150 and 210 nm.
Jet-X consists of two co-aligned, Woltjer Type I X-ray telescopes with 20 ¢¢ angular resolution in the 0.3-10 keV energy range, and a ~ 20¢ field of view. The combined on-axis effective area is ~ 360 cm 2 at 1.5 keV and ~ 140 cm 2 at 8 keV. CCD detectors provide for moderate ( E/DE ~ 10-50) spectral resolution. Jet-X was developed by a consortium of institutions in the UK, Italy, and Russia.
MOXE is a set of six X-ray pinhole cameras that continuously observe the entire sky in the energy range from 2 to 25 keV. Each MOXE module covers 1/6 of the sky (i.e., one face of a cube). For most of the sky, the 5 s sensitivity is ~ 4 mCrab in the 3-10 keV energy range, for a 4 hour observation. MOXE can monitor the whole sky on time scales longer than one week for sources as faint as 1 mCrab (1 UFU) in unconfused regions. Moderately bright (10 mCrab) sources can be monitored on time scales of an hour, and bright (100 mCrab) sources can be monitored on time scales of minutes. MOXE was developed by LANL.
FUVITA is a set of two telescopes with 10 ¢¢ resolution and a 1.2 ° field of view, covering the extreme ultraviolet range from 91.2 nm to 120 nm. The bandpass maximum is ~ 91 nm for one telescope and ~ 99 nm for the other, with a bandwidth of ~ 9 nm for each. The limiting sensitivity for FUVITA is ~ 10 -5 photons cm -2 s -1 A -1 for a 24 hour observation. FUVITA was developed by the Paul Scherrer Institute.
MART-LIME is a high-energy, coded-aperture x-ray telescope, sensitive to x-rays in the energy range from 5-150 keV. The field of view is 6°×6° with an on-axis angular resolution of ~ 9 ¢ . The sensitivity for a 24 hour observation is ~ 1 mCrab. MART-LIME was developed by IAS and IKI.
The U.S. Spectrum-X Gamma Coordination Facility is operated by the Smithsonian Astrophysical Observatory. Its responsibilities include:
It should be emphasized that the SXGCF is not charged with developing SXG processing software nor with processing raw SXG data to provide scientifically useful data products. As described in Section 3, data input to the SXGCF are assumed to be the final data products of processing systems operated by those SXG data centers which have agreed to provide data to the SXGCF. The SXGCF will work with other SXG data centers to ensure the scientific usefulness of the input data products.
Scientific data managed by the SXGCF derives from 3 sources: the US SODART Guest Observer Program, the MOXE All-Sky Monitor, and data centers at IKI and DSRI, which have negotiated data-sharing agreements with NASA.
Programmatic data will include proposal data from the U.S. Guest Observer Program, and a catalog of completed and planned SXG observations.
The US has been alloted 2.5% of the SODART primary time (during which the observer's target and choice of instrument determine the observatory's pointing direction), using both SODART telescopes. Since the total SODART time comprises 45% of the total observing time, US observing time will amount to 1.125% of the total SXG primary time, or ~ 2.7×105 seconds per year, assuming a useful pointing time of ~ 2 .4×10 7 seconds per year. An additional 1.5% of the total SODART primary time ( ~ 1 .6×10 5 seconds) will be made available for US/Russian collaborations, half of which will have US Principal Investigators.
In addition to the primary time noted above, the US also has available SODART secondary time (during which other observations determine pointing direction), but only as collaborative time with Russia. This time consists of 2.5% of the total SODART secondary time ( ~ 3 .3×10 5 seconds). The mechanisms for time-sharing secondary time are still under development by the SXG Technical Implementation and International Science Committees.
US/Danish collaborations may also be possible. However, details of this program and the SXGCF's involvement in it have yet to be negotiated by NASA and DSRI.
The MOXE instrument team at LANL will receive all MOXE data. Following a 1-year proprietary period, these data will enter the SXGCF archive and will be made available to U.S. archival researchers.
Under a bilateral agreement between NASA and the Russian Academy of Sciences, the Russian share of all SXG data will be provided to the U.S. SXG archive within 3 years. This includes ~ 50 % of the data from SODART, Jet-X, MART-LIME, and FUVITA.
Under a separate bilateral agreement between NASA and the Danish Space Research Institute, the Danish share of SODART data will be provided to the U.S. SXG archive after 1 year.
The SXGCF will maintain calibration data for all science data within its scope. It also advocates a unified CALDB-style database containing calibration data from all SXG instruments, which would be made available to all SXG users. It has offered to help organize and manage such a site. However, such a database has not yet been approved by all SXG partner institutions.
The SXGCF will maintain a database of information from proposals for observations under the U.S. SODART Guest Observer Program. Abstracts of approved proposals will be made publicly available.
The SXGCF also will maintain a unified observing catalog, providing a definitive list of approved targets and their status, for all SXG observations.
There is general agreement among SXG data centers to provide data products to SXG observers in FITS format. The SXGCF will work with the data centers to ensure that such data products are available.
X, MART-LIME) will be FITS binary tables, containing event lists, engineering data, aspect data, and orbit data. Sample FITS headers for SODART HEPC/LEPC data files are shown in Appendix A. TAUVEX and FUVITA data products are expected to be broad-band FITS images, but detailed specifications are not yet available. MOXE FITS formats are described in http://nis-www.lanl.gov/nis-projects/moxe/dbm2/dbm2help/felform.shtml.
Although exact formats for most other instruments have yet to be defined, it is expected that they will conform to OGIP standards for FITS-formatted data from High Energy Astrophysics missions (see http://heasarc.gsfc.nasa.gov/docs/heasarc/ofwg/ofwg_recomm.html) and will be similar in content and organization to data products from other contemporary x-ray missions.
In addition to the basic, detailed data products, the SXGCF plans to make available reduced, ``first-look'' datasets, such as blocked images, spectra, and light-curves, intended to provide archival researchers with a quick, semi-quantitative understanding of the quality and utility of selected SXG observations. These first-look data sets will be in the form of FITS images and binary tables. However, it is possible that they may exist only as ``virtual'' files, being generated ``on-the-fly'' by the archive software, in response to a user query (see Section 6).
The SXGCF will maintain calibration data and instrument models in FITS format for all SXG instruments. These data will include detector response matrices (rmf's), telescope effective areas and detector efficiencies (arf's), instrument maps, point response function images, and blank fields. Sample FITS headers for currently available SODART HEPC, LEPC, and SIXA calibration data products are shown in Appendix B.
A HEASARC-style CALDB will be used to organize and distribute calibration data to U.S. guest observers and archive researchers. Also shown in Appendix B are listings for the caldb.indx files describing the datasets mentioned above. OGIP standards for calibration data products will be followed whenever possible. The SXGCF will work with both HEASARC and other SXG data centers to develop standards for any calibration data unique to the SXG mission.
An observation catalog which describes the status of all approved SXG observations will be maintained on-line and made available to U.S. SXG observers. The catalog will be in the form of one or more ASCII tables in STARBASE format. STARBASE is a unix-based ASCII database management system developed at SAO, which is similar to /rdb but with astronomical extensions.
Proposals for SXG observing time under the U.S. Guest Observer Program will be submitted to the SXGCF by e-mail. Proposers will fill out simple ASCII templates with cover page and target information, and send the resulting ASCII text as e-mail to the SXGCF. The contents of a sample proposal are shown in Tables 1 and 2.
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Data are extracted from the proposal e-mail are extracted and stored in the proposal database. The database will be in the form of several ASCII tables in STARBASE format. Entries for the proposal in Tables 1 and 2 are shown in Table 3.
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The SXG Data Centers have reported size estimates for basic SXG data products in Appendix 14 of the Protocol of the 10th Technical Implementation Committee (TIC) meeting. These estimates are summarized in Table 4 for those data relevant to the SXGCF . Although delivery of most of these data to the SXGCF will be deferred until 1-3 years after launch, the archive must ultimately accommodate a science data volume of ~ 160 Gbytes per year, excluding MOXE data (see Section 4.4).
| Instrument | Data Products | Data Volume (Gbytes/year) |
| All | Raw Telemetry | 1-2 |
| SODART (Danish) | Event Lists, Housekeeping | 25 |
| Attitude, Ephemeris | ||
| SODART (Russian) | `` | 25 |
| SODART (U.S.) | `` | 1-2 |
| Jet-X (Russian) | `` | 75 |
| MART-LIME (Russian) | `` | 30? |
| MOXE | Event Lists | 100-150 |
| FUVITA (Russian) | Images | 1 |
| TAUVEX (Russian) | Images | 1 |
Initial plans for the SXGCF called for a multi-level archive with only reduced ``first-look'' data products maintained on-line, while the bulk of the data resided in ``on-demand'' CD-ROM or DAT juke-boxes. However, on-going advances in data storage technology now make it feasible to maintain the entire archive on-line on magnetic disk, backed up on DVD media. For example, 50 Gbyte capacity magnetic drives are readily available for ~ $1000 per drive, and DVD writers, which can copy ~ 5 Gbytes of data to DVD format, are available for ~ $1000 per unit.
The SXGCF has therefore updated its baseline hardware architecture to consist of one or more workstations and file servers, with each server supporting multiple, large-capacity magnetic disks and DVD readers and writers, connected by a LAN. This approach drastically simplifies the hardware architecture, eliminating the need for special purpose archive servers and robotic devices. It also increases the flexibility and cost-effectiveness of the archive by allowing it to grow incrementally as storage needs demand, rather than in larger steps dictated by the sizes of available special purpose archive hardware.
The initial design for the SXGCF archive called for organizing archival data in multiple ``tiers'', with ``first-look'' data maintained on-line, and more detailed data sets available upon request. Although the revised architecture described in Section 4.1 eliminates the physical distinction between first-look and detailed data sets, the logical distinction remains a key part of the SXGCF archive design. The simple directory tree structure shown in Figure 1describes the logical design of the archive.
A web-based observation catalog will be the primary user interface to the archive. Archive researchers will be able to query the observation catalog by position, target name, instrument, and observation date. Users will then be able to examine first-look data sets for selected observations and retrieve more detailed data. An example Observation Catalog Query Form is shown in Figure 2, and a sample of a first-look results page is shown in Figure 3.
The SXGCF will work closely with HEASARC, which has assumed the functions of the NSSDC, to develop a long-term SXG archive that efficiently serves the needs of the astronomical community. We will explore the possibility of physically integrating the SXGCF archive with the HEASARC archives over the Internet. It is anticipated that ever-increasing capacities of high-speed data links would make such a distributed archive transparent to the user in the near future.
The MOXE archive will be used to prototype the distributed archive approach. In order to conduct the scientific program for an all-sky monitor such as MOXE, LANL must be able to build and use a MOXE archive from the start of the SXG mission. Current LANL plans are to archive MOXE data directly to HEASARC, since some HEASARC members are Co-Investigators on the MOXE team. Rather than building a redundant archive at SAO, the SXGCF will work closely with LANL and HEASARC to provide first-look data products and general user access to the MOXE archive at HEASARC.
The mechanisms for collecting data products and observing catalog information from other SXG Data Centers have not yet been defined. Proposal data for the U.S. Guest Observer Program will be extracted from proposals submitted via e-mail by computer programs executed at the SXGCF, to produce proposal database entries as described in Section 3.4.
Proprietary data sets for the U.S. Guest Observer Program will be validated at the SXGCF and delivered to observers electronically via ftp. Archival data will be made available primarily through the Observation Catalog Interface described in Section 4.3, but will also be available via ftp. Users who require large volumes of data should contact the SXGCF directly.
As discussed in Section 1.3, the SXGCF will not develop SXG data processing software. However, the SXGCF will make available, either directly or via www links, a number of software packages for SXG data analysis or proposal preparation. A partial list of these packages is shown in Table 5.
| Package | Description |
| DS9 | FITS-based Image Display Program |
| STARBASE | ASCII Relational Database Management System with Astronomical Extensions |
| IRAF | NOAO's Image Reduction and Analysis Facility |
| PIMMS | HEASARC X-ray Mission Count Rate Estimation Service |
| XSPEC | HEASARC Spectral Simulation and Analysis System |
| ZHtools | Jet-X Image Analysis Programs |
| JMAN | RAL's SXG Visibility Program |
| FTOOLS | HEASARC FITS-based Data Analysis Package |
| X-ray Events Simulator | BeppoSax General Purpose Simulator |
The SXGCF will work closely with the SAO/HEAD R&D Group to provide user interfaces between DS9 (the latest in the SAOImage line of image display tools) and FITS-based SXG analysis programs. DS9 will be used both to examine SXG data and launch appropriate analysis programs. The SXGCF will also work with the R&D Group to explore the possibility of generating first-look data products ``on-the-fly'' from basic event lists.
All software provided by the SXGCF will be available via ftp and will be located in the ``SOFTWARE'' sub-directory in Figure 1.
The SXGCF will provide both on-line and file-based versions of Observatory Guides for all supported SXG instruments. File-based documents will be made available via ftp and will reside in the ``DOC'' subdirectory in Figure 1.
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
CONTENT = 'BASIC ' / What does this file contain
ORIGIN = 'DSRI ' / Origin of processed data
CREATOR = 'simconv.x:%I%' / Name and version of processing program
REVISION= 1 / Revision of processed data
TIMVERSN= 'OGIP/93-003a' / Ratefile defined in this document
DATE = '21/05/97' / Date of filecreation
SRGFILE = 'BRDFHEA-FM.35.a00000006' / Filename of srg-file
BACKFILE= 'BKFIL ' / File for background information
GRCONNUM= 0 / Ground Contact Number
OBS_ID = '123456 ' / Observation ID (sequence number)
REQ_ID = '01DK00001' / Request number
SRGPARTN= 'DK ' / Country that owns the data
OBSERVER= 'RUDART TEAM' / PI-name
PINAME = 'Morten Barfoed' / PI name
PIADR1 = 'Danish Space Research Institute' / PI address, 1st line
PIADR2 = 'Gl. Lundtoftevej 7' / PI address, 2nd line
PIADR3 = 'Dk 2800 Lyngby' / PI address, 3rd line
PIADR4 = 'Denmark ' / PI address, 4th line
PIADR5 = '______________________________' / PI address, 5th line
PIPHONE = '(0045) 45 88 22 77, loc. 161' / PI phone number
PIEADR = 'morten@dsri.dk' / PI email address
OBJECT = 'Test Object' / Name of object observed
CATID001= ' ' / 1st alternative name of object
CATID002= ' ' / 2nd alternative name of object
CATID003= ' ' / 3rd alternative name of object
CATID004= ' ' / 4th alternative name of object
TELESCOP= 'SPECTR-RG' / Mission name
INSTRUME= 'SOD-A ' / Name of telescope
DETNAM = 'HEA ' / Name of detector
OBS_MODE= 'SCANNING' / Observation mode
RADECSYS= 'FK5 ' / Stellar reference frame
EQUINOX = 2.0000000000E+03 / Equinox
RA_OBJ = 2.1488749700E+02 / RA for object observed
DEC_OBJ = -1.9333334000E+01 / DEC for object observed
RA_PNT = 2.1488749700E+02 / Nominal RA of x-axis, deg.
DEC_PNT = -1.9333334000E+01 / Nominal decl. of x-axis, deg.
ROLL_PNT= 2.0000000000E+01 / Nominal roll-angle
ANG_OXS = 0.0000000000E+00 / Nominal OXS-angle
RA_OXS = 0.0000000000E+00 / Nominal RA of OXS-pointing dir.
DEC_OXS = 0.0000000000E+00 / Nominal DEC of OXS-pointing dir.
SIDE_OXS= '1 ' / Side of OXS used for observing
TSTART = 6.8750784678E+07 / MJD observation-start
TSTOP = 6.8750784685E+07 / MJD observation-end
TELAPSE = 6.9444477558E-03 / MJD duration of observation
DATE-OBS= '02/17/92' / Date of observation start, UT-time
TIME-OBS= '16:16:16' / Hour of observation start, UT-time
DATE-END= '02/17/92' / Date of observation end, UT-time
TIME-END= '16:26:16' / Hour of observation end, UT-time
MJDREF = 0.0000000000E+00 / MJD offset for events
TIMESYS = '1996 1 1 00:00:00' / Time-system used
TIMEUNIT= 's ' / Time-unit is seconds
TIMEREF = 'LOCAL ' / Timereference for event-times
TASSIGN = 'SATELLITE' / Times assigned at the spacecraft
TIERRELA= 0.0000000000E+00 / Relative errors expressed as rate
TIERABSO= 0.0000000000E+00 / Timing precision (days)
CLOCKAPP= 0 / Correction for sc-timedrift
NUM_OBIS= 1 / Number of observation intervals
LIVETIME= 9.6601100000E+01 / Livetime in seconds
DEADC = 9.6601100000E-01 / Deadtime correction factor
ONTIME = 1.0000000000E+02 / Ontime in seconds
END
XTENSION= 'BINTABLE' / This is a bintable
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 28 / Witdh of table in bytes
NAXIS2 = 5344 / Number of records in extension
PCOUNT = 0 / Size of special dataarray
GCOUNT = 1 / One data group
TFIELDS = 11 / Number of fields in each row
TTYPE1 = 'X ' / X-coord. of event on tangent-plane
TFORM1 = 'I ' / 2 byte integer
TUNIT1 = 'pixel ' / Unit pixel.
TTYPE2 = 'Y ' / y-coord. of event on tangent-plane
TFORM2 = 'I ' / 2 byte integer
TUNIT2 = 'pixel ' / Unit pixel.
TTYPE3 = 'PHA ' / Pulse height, uncorrected value
TFORM3 = 'I ' / 2 byte integer
TUNIT3 = 'chan ' / Channel
TTYPE4 = 'PI ' / Pulse-height, corrected value
TFORM4 = 'I ' / 2 byte integer
TUNIT4 = 'chan ' / Channel
TTYPE5 = 'RISE_TIME' / Risetime of induced signal
TFORM5 = 'I ' / 2 byte integer
TUNIT5 = 'us ' / Microseconds
TTYPE6 = 'TIME ' / Photon arrival time in MJD-time
TFORM6 = 'D ' / 8 byte float
TUNIT6 = 's ' / Spacecraft seconds
TTYPE7 = 'RAWX ' / X-coordinate of event in detector
TFORM7 = 'I ' / 2 byte integer
TUNIT7 = 'pixel ' / Pixel
TTYPE8 = 'RAWY ' / Y-coordinate of event in detector
TFORM8 = 'I ' / 2 byte integer
TUNIT8 = 'pixel ' / Pixel
TTYPE9 = 'DETX ' / X-coord. of event in lin. det. coord.
TFORM9 = 'I ' / 2 byte integer
TUNIT9 = 'pixel ' / Pixel
TTYPE10 = 'DETY ' / Y-coord. of event in lin. det. coord.
TFORM10 = 'I ' / 2 byte integer
TUNIT10 = 'pixel ' / Pixel
TTYPE11 = 'STATUS ' / Status of event
TFORM11 = 'I ' / 2 byte integer
TUNIT11 = ' ' / Coded
TCTYP1 = 'RA---TAN' / Aspect corr. tangent plane proj, RA
TCRPX1 = 256 / X-axis reference pixel, x-coord.
TCRVL1 = 2.1489053707E+02 / RA. (deg) at reference pixel.
TCDLT1 = 4.7437781968E-03 / X-increment (deg/pix) at ref. pixel
TCROT1 = 0.0000000000E+00 / Rotation angle of x-axis to parallel
TLMIN1 = 0 / Minimum-value for x-coordinate
TLMAX1 = 511 / Maximum-value for x-coordinate
TCTYP2 = 'DEC--TAN' / Aspect corr. tangent plane proj, DEC
TCRPX2 = 256 / Y-axis reference pixel, x-coord.
TCRVL2 = -1.9334671635E+01 / DEC. (deg) at reference pixel.
TCDLT2 = 4.4762327746E-03 / Y-increment (deg/pix) at ref. pixel
TCROT2 = 0.0000000000E+00 / Rotation angle of y-axis to meridian)
TLMIN2 = 0 / Minimum-value for y-coordinate
TLMAX2 = 511 / Maximum-value for y-coordinate
TLMIN3 = 0 / Minimum-value for PHA
TLMAX3 = 255 / Maximum-value for PHA
TLMIN4 = 0 / Minimum-value for PI
TLMAX4 = 255 / Maximum-value for PI
TLMIN5 = 0 / Minimum-value for Risetime
TLMAX5 = 255 / Maximum-value for Risetime
TLMIN7 = 0 / Minimum-value for RAW-X
TLMAX7 = 255 / Maximum-value for RAW-X
TLMIN8 = 0 / Minimum-value for RAW-Y
TLMAX8 = 255 / Maximum-value for RAW-Y
TCRPX9 = 0.0000000000E+00 / DET-X reference pixel, x-coord.
TCDLT9 = 6.2500000000E-01 / DET-X (mm/pix) at ref. pixel
TLMIN9 = 0 / Minimum-value for DET-X
TLMAX9 = 255 / Maximum-value for DET-X
TCRPX10 = 0.0000000000E+00 / DET-Y reference pixel, y-coord.
TCDLT10 = 6.2500000000E-01 / DET-Y (mm/pix) at ref. pixel
TLMIN10 = 0 / Minimum-value for DET-Y
TLMAX10 = 255 / Maximum-value for DET-Y
CONTENT = 'BASIC ' / What does this file contain
ORIGIN = 'DSRI ' / Origin of processed data
CREATOR = 'simconv.x:%I%' / Name and version of processing program
REVISION= 1 / Revision of processed data
TIMVERSN= 'OGIP/93-003a' / Ratefile defined in this document
DATE = '21/05/97' / Date of filecreation
SRGFILE = 'BRDFHEA-FM.35.a00000006' / Filename of srg-file
BACKFILE= 'BKFIL ' / File for background information
GRCONNUM= 0 / Ground Contact Number
OBS_ID = '123456 ' / Observation ID (sequence number)
REQ_ID = '01DK00001' / Request number
SRGPARTN= 'DK ' / Country that owns the data
OBSERVER= 'RUDART TEAM' / PI-name
PINAME = 'Morten Barfoed' / PI name
PIADR1 = 'Danish Space Research Institute' / PI address, 1st line
PIADR2 = 'Gl. Lundtoftevej 7' / PI address, 2nd line
PIADR3 = 'Dk 2800 Lyngby' / PI address, 3rd line
PIADR4 = 'Denmark ' / PI address, 4th line
PIADR5 = '______________________________' / PI address, 5th line
PIPHONE = '(0045) 45 88 22 77, loc. 161' / PI phone number
PIEADR = 'morten@dsri.dk' / PI email address
OBJECT = 'Test Object' / Name of object observed
CATID001= ' ' / 1st alternative name of object
CATID002= ' ' / 2nd alternative name of object
CATID003= ' ' / 3rd alternative name of object
CATID004= ' ' / 4th alternative name of object
TELESCOP= 'SPECTR-RG' / Mission name
INSTRUME= 'SOD-A ' / Name of telescope
DETNAM = 'HEA ' / Name of detector
OBS_MODE= 'SCANNING' / Observation mode
RADECSYS= 'FK5 ' / Stellar reference frame
EQUINOX = 2.0000000000E+03 / Equinox
RA_OBJ = 2.1488749700E+02 / RA for object observed
DEC_OBJ = -1.9333334000E+01 / DEC for object observed
RA_PNT = 2.1488749700E+02 / Nominal RA of x-axis, deg.
DEC_PNT = -1.9333334000E+01 / Nominal decl. of x-axis, deg.
ROLL_PNT= 2.0000000000E+01 / Nominal roll-angle
ANG_OXS = 0.0000000000E+00 / Nominal OXS-angle
RA_OXS = 0.0000000000E+00 / Nominal RA of OXS-pointing dir.
DEC_OXS = 0.0000000000E+00 / Nominal DEC of OXS-pointing dir.
SIDE_OXS= '1 ' / Side of OXS used for observing
TSTART = 6.8750784678E+07 / MJD observation-start
TSTOP = 6.8750784685E+07 / MJD observation-end
TELAPSE = 6.9444477558E-03 / MJD duration of observation
DATE-OBS= '02/17/92' / Date of observation start, UT-time
TIME-OBS= '16:16:16' / Hour of observation start, UT-time
DATE-END= '02/17/92' / Date of observation end, UT-time
TIME-END= '16:26:16' / Hour of observation end, UT-time
MJDREF = 0.0000000000E+00 / MJD offset for events
TIMESYS = '1996 1 1 00:00:00' / Time-system used
TIMEUNIT= 's ' / Time-unit is seconds
TIMEREF = 'LOCAL ' / Timereference for event-times
TASSIGN = 'SATELLITE' / Times assigned at the spacecraft
TIERRELA= 0.0000000000E+00 / Relative errors expressed as rate
TIERABSO= 0.0000000000E+00 / Timing precision (days)
CLOCKAPP= 0 / Correction for sc-timedrift
NUM_OBIS= 1 / Number of observation intervals
LIVETIME= 9.6601100000E+01 / Livetime in seconds
DEADC = 9.6601100000E-01 / Deadtime correction factor
ONTIME = 1.0000000000E+02 / Ontime in seconds
EXTNAME = 'EVENTS ' / Photon event extension
HDUCLASS= 'OGIP ' / Authors of format
HDUCLAS1= 'EVENTS ' / First level HDU-class
HDUCLAS2= 'ALL ' / Second level HDU-class
HISTORY TASK: FSORT on FILENAME: dsri.fits[1]
HISTORY fsort3.1d at 1999-11-16T20:00:36
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 18 / width of table in bytes
NAXIS2 = 1 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'START ' / Interval start time
TFORM1 = '1D ' / data format of the field: 8-byte DOUBLE
TUNIT1 = 's ' / physical unit of field
TTYPE2 = 'STOP ' / Interval stop time
TFORM2 = '1D ' / data format of the field: 8-byte DOUBLE
TUNIT2 = 's ' / physical unit of field
TTYPE3 = 'OBI_NUM ' / OBI number
TFORM3 = '1I ' / data format of the field: 2-byte INTEGER
TUNIT3 = 'NONE ' / physical unit of field
EXTNAME = 'STDGTI ' / Standard good time intervals
CONTENT = 'BASIC ' / data content of file
ORIGIN = 'USRSDC ' / origin of processed data
DATE = '04/10/95' / FITS creation date (DD/MM/YY)
TELESCOP= 'ROSAT ' / mission name
INSTRUME= 'HRI ' / instrument name
OBS_MODE= 'POINTING' / obs mode: POINTING,SLEW, OR SCAN
IRAFNAME= 'rh600674n00_stdgti.tab' / IRAF file name
MJDREFI = 48043 / MJD integer SC clock start
MJDREFF = 8.79745370370074E-01 / MJD fraction SC clock start
ZERODATE= '01/06/90' / UT date of SC start (DD/MM/YY)
ZEROTIME= '21:06:50' / UT time of SC start (HH:MM:SS)
RDF_VERS= '3.4 ' / Rationalized Data Format release version number
RDF_DATE= '27-APR-1995' / Rationalized Data Format release date
PROC_SYS= 'SASS7_7 ' / Processing system
PROCDATE= ' 4-OCT-1995 10:48:33' / SASS SEQ processing start date
CHECKSUM= 'CLPGCKNFCKNFCKNF' / HDU checksum updated on 04/10/95
DATASUM = 'KKdpNHcnKHcnKHcn' / data checksum updated on 04/10/95
REVISION= 2 / Revision number of processed data
FILTER = 'NONE ' / filter id: NONE OR BORON
OBJECT = 'M31 ' / name of object
RA_NOM = 1.068000E+01 / nominal RA (deg)
DEC_NOM = 4.127000E+01 / nominal DEC (deg)
ROLL_NOM= -1.579717E+02 / nominal ROLL (deg CCW North)
EQUINOX = 2.000000E+03 / equinox
OBS_ID = 'US600674H.N1' / observation ID
ROR_NUM = 600674 / ROR number
OBSERVER= 'PRIMINI, DR., FRANCIS,ANTHONY' / PI name
SETUPID = 'NOMINAL ' / Instrument setup
DATE-OBS= '17/07/95' / UT date of obs start (DD/MM/YY)
TIME-OBS= '11:21:05.000' / UT time of obs start (HH:MM:SS)
DATE_END= '06/08/95' / UT date of obs end (DD/MM/YY)
TIME_END= '15:48:40.000' / UT time of obs end (HH:MM:SS)
MJD-OBS = 4.991547E+04 / MJD of seq start
SCSEQBEG= 161705668 / SC seq start(sec)
SCSEQEND= 163449723 / SC seq end (sec)
NUM_OBIS= 3 / Number of obs intervals (OBIs)
LIVETIME= 3.845370E+03 / Live time
DTCOR = 9.868582E-01 / Dead time correction factor
ONTIME = 3.896578E+03 / On time
HDUCLASS= 'OGIP ' /
HDUCLAS1= 'GTI ' /
HDUCLAS2= 'STANDARD' /
COMMENT
COMMENT This extension lists all Standard Good Time Intervals
COMMENT that were considered to produce reliable observations.
COMMENT This excludes times of high background counts, earth
COMMENT occultations, and other anomalies. All time are given
COMMENT in terms of spacecraft clock seconds and have not been
COMMENT converted to Universal Time.
COMMENT
HISTORY SASS file used: STDGI.SEQ
HISTORY
HISTORY Correspondence with SASS variables:
HISTORY
HISTORY START = INTV_START_TIME
HISTORY STOP = INTV_STOP_TIME
HISTORY
HISTORY TASK: FAPPND on FILENAME: /data/u2391/m31/ao5/rh600674n00/rh600674n00_
HISTORY bas.fits[1
HISTORY fappend3.0a at 14/7/97 16:22:33
HISTORY modified by fap on Mon Jul 14 16:27:21 PDT 1997
END
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 526 / width of table in bytes
NAXIS2 = 729 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 6 / number of fields in each row
TTYPE1 = 'ENERG_LO' / label for field 1
TFORM1 = 'E ' / data format of the field: 4-byte REAL
TUNIT1 = 'keV ' / physical unit of field
TTYPE2 = 'ENERG_HI' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'N_GRP ' / label for field 3
TFORM3 = 'I ' / data format of the field: 2-byte INTEGER
TTYPE4 = 'F_CHAN ' / label for field 4
TFORM4 = '1I ' / data format of the field: 2-byte INTEGER
TTYPE5 = 'N_CHAN ' / label for field 5
TFORM5 = '1I ' / data format of the field: 2-byte INTEGER
TTYPE6 = 'MATRIX ' / label for field 6
TFORM6 = '128E ' / data format of the field: 4-byte REAL
EXTNAME = 'SPECRESP MATRIX' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'RSP_MATRIX' / dataset is a spectral response matrix
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
HDUCLAS3= 'DETECTOR' / convolved w/ detector effects (only)
TELESCOP= 'SXG ' / mission/satellite name
INSTRUME= 'HEPC-1 ' / instrument/detector name
DETNAM = 'NONE ' / specific detector name in use
FILTER = 'NONE ' / filter in use
DETCHANS= 128 / total number of detector channels
LO_THRES= 0.000000 / lower threshold for stored matrix
EFFAREA = 1.000000 / Area scaling factor
RMFVERSN= '1992a ' / OGIP classification of FITS format
HISTORY NO HISTORY
HISTORY FITS RMF extension written by WTRMF1 3.2.0
COMMENT MULTIPLIED BY WINDOW TRANSMISSION
CCLS0001= 'CPF '
CCNM0001= 'MATRIX '
CDTP0001= 'DATA '
CVSD0001= '1997-02-18'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch Response Matrix'
CBD10001= 'ENERG(0.1-30.0)keV'
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 12 / width of table in bytes
NAXIS2 = 128 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'CHANNEL ' / label for field 1
TFORM1 = 'J ' / data format of the field: 4-byte INTEGER
TTYPE2 = 'E_MIN ' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'E_MAX ' / label for field 3
TFORM3 = 'E ' / data format of the field: 4-byte REAL
TUNIT3 = 'keV ' / physical unit of field
EXTNAME = 'EBOUNDS ' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'EBOUNDS ' / nominal energies of PHA chan boundaries
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
TELESCOP= 'SXG ' / mission/satellite name
INSTRUME= 'HEPC-1 ' / instrument/detector name
DETNAM = 'NONE ' / specific detector name in use
FILTER = 'NONE ' / filter in use
DETCHANS= 128 / total number of detector channels
EFFAREA = 1.000000 / Area scaling factor
RMFVERSN= '1992a ' / OGIP classification of FITS format
HISTORY NO HISTORY
HISTORY FITS EBOUNDS extension written by WTEBD1 2.0.2
COMMENT MULTIPLIED BY WINDOW TRANSMISSION
CCLS0001= 'CPF '
CCNM0001= 'EBOUNDS '
CDTP0001= 'DATA '
CVSD0001= '1997-02-18'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch Energy Bounds'
CBD10001= 'ENERG(0.1-30.0)keV'
END
SIMPLE = T / file does conform to FITS standard
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 12 / width of table in bytes
NAXIS2 = 729 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'ENERG_LO' / label for field 1
TFORM1 = 'E ' / data format of the field: 4-byte REAL
TUNIT1 = 'keV ' / physical unit of field
TTYPE2 = 'ENERG_HI' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'SPECRESP' / label for field 3
TFORM3 = 'E ' / data format of the field: 4-byte REAL
TUNIT3 = 'cm**2 ' / physical unit of field
EXTNAME = 'SPECRESP' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'SPECRESP' / dataset contains spectral response
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
TELESCOP= 'SXG ' / mission/satellite name
INSTRUME= 'HEPC-1 ' / instrument/detector name
DETNAM = 'NONE ' / specific detector name in use
FILTER = 'NONE ' / filter in use
ARFVERSN= '1992a ' / OGIP classification of FITS format
PHAFILE = 'UNKNOWN ' / PHA file for which this ARF created
HISTORY NO HISTORY
HISTORY FITS ARF extension written by WTARF1 1.0.1
COMMENT NO COMMENT
CCLS0001= 'CPF '
CCNM0001= 'SPECRESP'
CDTP0001= 'DATA '
CVSD0001= '1997-02-18'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch ARF'
CBD10001= 'ENERG(0.1-30.0)keV'
END
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 947 / width of table in bytes
NAXIS2 = 3 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 18 / number of fields in each row
TTYPE1 = 'TELESCOP' / label for field 1
TFORM1 = '10A ' / data format of field: ASCII Character
TTYPE2 = 'INSTRUME' / label for field 2
TFORM2 = '10A ' / data format of field: ASCII Character
TTYPE3 = 'DETNAM ' / label for field 3
TFORM3 = '20A ' / data format of field: ASCII Character
TTYPE4 = 'FILTER ' / label for field 4
TFORM4 = '10A ' / data format of field: ASCII Character
TTYPE5 = 'CAL_DEV ' / label for field 5
TFORM5 = '20A ' / data format of field: ASCII Character
TTYPE6 = 'CAL_DIR ' / label for field 6
TFORM6 = '70A ' / data format of field: ASCII Character
TTYPE7 = 'CAL_FILE' / label for field 7
TFORM7 = '40A ' / data format of field: ASCII Character
TTYPE8 = 'CAL_CLAS' / label for field 8
TFORM8 = '3A ' / data format of field: ASCII Character
TTYPE9 = 'CAL_DTYP' / label for field 9
TFORM9 = '4A ' / data format of field: ASCII Character
TTYPE10 = 'CAL_CNAM' / label for field 10
TFORM10 = '20A ' / data format of field: ASCII Character
TTYPE11 = 'CAL_CBD ' / label for field 11
TFORM11 = '630A70 ' / data format of field: ASCII Character
TTYPE12 = 'CAL_XNO ' / label for field 12
TFORM12 = 'I ' / data format of field: 2-byte INTEGER
TTYPE13 = 'CAL_VSD ' / label for field 13
TFORM13 = '10A ' / data format of field: ASCII Character
TTYPE14 = 'CAL_VST ' / label for field 14
TFORM14 = '8A ' / data format of field: ASCII Character
TTYPE15 = 'REF_TIME' / label for field 15
TFORM15 = 'D ' / data format of field: 8-byte DOUBLE
TTYPE16 = 'CAL_QUAL' / label for field 16
TFORM16 = 'I ' / data format of field: 2-byte INTEGER
TTYPE17 = 'CAL_DATE' / label for field 17
TFORM17 = '10A ' / data format of field: ASCII Character
TTYPE18 = 'CAL_DESC' / label for field 18
TFORM18 = '70A ' / data format of field: ASCII Character
EXTNAME = 'CIF ' / name of this binary table extension
CIFVERSN= ' 1.1 ' / Version of CIF format
END
TELESCOP INSTRUME DETNAM FILTER
1 SXG HEPC-1 NONE NONE
2 SXG HEPC-1 NONE NONE
3 SXG HEPC-1 NONE NONE
CAL_DEV
1 ONLINE
2 ONLINE
3 ONLINE
CAL_DIR
1 data/sxg/hepc
2 data/sxg/hepc
3 data/sxg/hepc
CAL_FILE CAL_CLAS CAL_DTYP
1 hepc.arf CPF DATA
2 hepc.rmf CPF DATA
3 hepc.rmf CPF DATA
CAL_CNAM
1 SPECRESP
2 MATRIX
3 EBOUNDS
CAL_CBD
1 ENERG(0.1-30.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
2 ENERG(0.1-30.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
3 ENERG(0.1-30.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
CAL_XNO CAL_VSD CAL_VST REF_TIME CAL_QUAL CAL_DATE
1 1 1997-02-18 00:00:00 5.049700000000000E+04 0 1999-11-11
2 1 1997-02-18 00:00:00 5.049700000000000E+04 0 1999-11-11
3 2 1997-02-18 00:00:00 5.049700000000000E+04 0 1999-11-11
CAL_DESC
1 Pre-launch ARF
2 Pre-launch Response Matrix
3 Pre-launch Energy Bounds
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 526 / width of table in bytes
NAXIS2 = 729 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 6 / number of fields in each row
TTYPE1 = 'ENERG_LO' / label for field 1
TFORM1 = 'E ' / data format of the field: 4-byte REAL
TUNIT1 = 'keV ' / physical unit of field
TTYPE2 = 'ENERG_HI' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'N_GRP ' / label for field 3
TFORM3 = 'I ' / data format of the field: 2-byte INTEGER
TTYPE4 = 'F_CHAN ' / label for field 4
TFORM4 = '1I ' / data format of the field: 2-byte INTEGER
TTYPE5 = 'N_CHAN ' / label for field 5
TFORM5 = '1I ' / data format of the field: 2-byte INTEGER
TTYPE6 = 'MATRIX ' / label for field 6
TFORM6 = '128E ' / data format of the field: 4-byte REAL
EXTNAME = 'SPECRESP MATRIX' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'RSP_MATRIX' / dataset is a spectral response matrix
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
HDUCLAS3= 'DETECTOR' / convolved w/ detector effects (only)
TELESCOP= 'SXG ' / mission/satellite name
INSTRUME= 'LEPC-1 '
DETNAM = 'NONE ' / specific detector name in use
FILTER = 'NONE ' / filter in use
DETCHANS= 128 / total number of detector channels
LO_THRES= 0.000000 / lower threshold for stored matrix
EFFAREA = 1.000000 / Area scaling factor
RMFVERSN= '1992a ' / OGIP classification of FITS format
HISTORY NO HISTORY
HISTORY FITS RMF extension written by WTRMF1 3.2.0
COMMENT MULTIPLIED BY WINDOW TRANSMISSION
CCLS0001= 'CPF '
CCNM0001= 'MATRIX '
CDTP0001= 'DATA '
CVSD0001= '1997-02-18'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch Response Matrix'
CBD10001= 'ENERG(0.1-30.0)keV'
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 12 / width of table in bytes
NAXIS2 = 128 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'CHANNEL ' / label for field 1
TFORM1 = 'J ' / data format of the field: 4-byte INTEGER
TTYPE2 = 'E_MIN ' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'E_MAX ' / label for field 3
TFORM3 = 'E ' / data format of the field: 4-byte REAL
TUNIT3 = 'keV ' / physical unit of field
EXTNAME = 'EBOUNDS ' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'EBOUNDS ' / nominal energies of PHA chan boundaries
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
TELESCOP= 'SXG ' / mission/satellite name
INSTRUME= 'LEPC-1 '
DETNAM = 'NONE ' / specific detector name in use
FILTER = 'NONE ' / filter in use
DETCHANS= 128 / total number of detector channels
EFFAREA = 1.000000 / Area scaling factor
RMFVERSN= '1992a ' / OGIP classification of FITS format
HISTORY NO HISTORY
HISTORY FITS EBOUNDS extension written by WTEBD1 2.0.2
COMMENT MULTIPLIED BY WINDOW TRANSMISSION
CCLS0001= 'CPF '
CCNM0001= 'EBOUNDS '
CDTP0001= 'DATA '
CVSD0001= '1997-02-18'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch Energy Bounds'
CBD10001= 'ENERG(0.1-30.0)keV'
END
SIMPLE = T / file does conform to FITS standard
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 12 / width of table in bytes
NAXIS2 = 729 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'ENERG_LO' / label for field 1
TFORM1 = 'E ' / data format of the field: 4-byte REAL
TUNIT1 = 'keV ' / physical unit of field
TTYPE2 = 'ENERG_HI' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'SPECRESP' / label for field 3
TFORM3 = 'E ' / data format of the field: 4-byte REAL
TUNIT3 = 'cm**2 ' / physical unit of field
EXTNAME = 'SPECRESP' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'SPECRESP' / dataset contains spectral response
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
TELESCOP= 'SXG ' / mission/satellite name
INSTRUME= 'LEPC-1 '
DETNAM = 'NONE ' / specific detector name in use
FILTER = 'NONE ' / filter in use
ARFVERSN= '1992a ' / OGIP classification of FITS format
PHAFILE = 'UNKNOWN ' / PHA file for which this ARF created
HISTORY NO HISTORY
HISTORY FITS ARF extension written by WTARF1 1.0.1
COMMENT NO COMMENT
CCLS0001= 'CPF '
CCNM0001= 'SPECRESP'
CDTP0001= 'DATA '
CVSD0001= '1997-02-18'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch ARF'
CBD10001= 'ENERG(0.1-30.0)keV'
END
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 947 / width of table in bytes
NAXIS2 = 3 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 18 / number of fields in each row
TTYPE1 = 'TELESCOP' / label for field 1
TFORM1 = '10A ' / data format of field: ASCII Character
TTYPE2 = 'INSTRUME' / label for field 2
TFORM2 = '10A ' / data format of field: ASCII Character
TTYPE3 = 'DETNAM ' / label for field 3
TFORM3 = '20A ' / data format of field: ASCII Character
TTYPE4 = 'FILTER ' / label for field 4
TFORM4 = '10A ' / data format of field: ASCII Character
TTYPE5 = 'CAL_DEV ' / label for field 5
TFORM5 = '20A ' / data format of field: ASCII Character
TTYPE6 = 'CAL_DIR ' / label for field 6
TFORM6 = '70A ' / data format of field: ASCII Character
TTYPE7 = 'CAL_FILE' / label for field 7
TFORM7 = '40A ' / data format of field: ASCII Character
TTYPE8 = 'CAL_CLAS' / label for field 8
TFORM8 = '3A ' / data format of field: ASCII Character
TTYPE9 = 'CAL_DTYP' / label for field 9
TFORM9 = '4A ' / data format of field: ASCII Character
TTYPE10 = 'CAL_CNAM' / label for field 10
TFORM10 = '20A ' / data format of field: ASCII Character
TTYPE11 = 'CAL_CBD ' / label for field 11
TFORM11 = '630A70 ' / data format of field: ASCII Character
TTYPE12 = 'CAL_XNO ' / label for field 12
TFORM12 = 'I ' / data format of field: 2-byte INTEGER
TTYPE13 = 'CAL_VSD ' / label for field 13
TFORM13 = '10A ' / data format of field: ASCII Character
TTYPE14 = 'CAL_VST ' / label for field 14
TFORM14 = '8A ' / data format of field: ASCII Character
TTYPE15 = 'REF_TIME' / label for field 15
TFORM15 = 'D ' / data format of field: 8-byte DOUBLE
TTYPE16 = 'CAL_QUAL' / label for field 16
TFORM16 = 'I ' / data format of field: 2-byte INTEGER
TTYPE17 = 'CAL_DATE' / label for field 17
TFORM17 = '10A ' / data format of field: ASCII Character
TTYPE18 = 'CAL_DESC' / label for field 18
TFORM18 = '70A ' / data format of field: ASCII Character
EXTNAME = 'CIF ' / name of this binary table extension
CIFVERSN= ' 1.1 ' / Version of CIF format
END
TELESCOP INSTRUME DETNAM FILTER
1 SXG LEPC-1 NONE NONE
2 SXG LEPC-1 NONE NONE
3 SXG LEPC-1 NONE NONE
CAL_DEV
1 ONLINE
2 ONLINE
3 ONLINE
CAL_DIR
1 data/sxg/lepc
2 data/sxg/lepc
3 data/sxg/lepc
CAL_FILE CAL_CLAS CAL_DTYP
1 lepc.arf CPF DATA
2 lepc.rmf CPF DATA
3 lepc.rmf CPF DATA
CAL_CNAM
1 SPECRESP
2 MATRIX
3 EBOUNDS
CAL_CBD
1 ENERG(0.1-30.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
2 ENERG(0.1-30.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
3 ENERG(0.1-30.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
CAL_XNO CAL_VSD CAL_VST REF_TIME CAL_QUAL CAL_DATE
1 1 1997-02-18 00:00:00 5.049700000000000E+04 0 1999-11-11
2 1 1997-02-18 00:00:00 5.049700000000000E+04 0 1999-11-11
3 2 1997-02-18 00:00:00 5.049700000000000E+04 0 1999-11-11
CAL_DESC
1 Pre-launch ARF
2 Pre-launch Response Matrix
3 Pre-launch Energy Bounds
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
CONTENT = 'RESPONSE' / spectral response matrix
ORIGIN = 'SIXA team' / origin of FITS file
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 12 / width of table in bytes
NAXIS2 = 1024 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'CHANNEL ' / label for field 1
TFORM1 = 'J ' / data format of the field: 4-byte INTEGER
TTYPE2 = 'E_MIN ' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'E_MAX ' / label for field 3
TFORM3 = 'E ' / data format of the field: 4-byte REAL
TUNIT3 = 'keV ' / physical unit of field
EXTNAME = 'EBOUNDS ' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'EBOUNDS ' / nominal energies of PHA chan boundaries
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
TELESCOP= 'SODART ' / mission/satellite name
INSTRUME= 'SIXA ' / instrument/detector name
DETNAM = '1 ' / specific detector name in use
FILTER = 'none ' / filter in use
DETCHANS= 1024 / total number of detector channels
EFFAREA = 1.000000 / Area scaling factor
RMFVERSN= '1992a ' / OGIP classification of FITS format
TLMIN1 = 1 / Minimum value legally allowed in column 1
TLMAX1 = 1024 / Maximum value legally allowed in column 1
HISTORY Response matrix computed by fits.pro
HISTORY FITS EBOUNDS extension written by WTEBD2 1.0.0
COMMENT
CCLS0001= 'CPF '
CCNM0001= 'MATRIX '
CDTP0001= 'DATA '
CVSD0001= '1997-04-11'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch Response Matrix'
CBD10001= 'ENERG(0.1-20.0)keV'
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 26 / width of table in bytes
NAXIS2 = 1005 / number of rows in table
PCOUNT = 273180 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 6 / number of fields in each row
TTYPE1 = 'ENERG_LO' / label for field 1
TFORM1 = 'E ' / data format of the field: 4-byte REAL
TUNIT1 = 'keV ' / physical unit of field
TTYPE2 = 'ENERG_HI' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'N_GRP ' / label for field 3
TFORM3 = 'I ' / data format of the field: 2-byte INTEGER
TTYPE4 = 'F_CHAN ' / label for field 4
TFORM4 = '2I ' / data format of the field: 2-byte INTEGER
TTYPE5 = 'N_CHAN ' / label for field 5
TFORM5 = '2I ' / data format of the field: 2-byte INTEGER
TTYPE6 = 'MATRIX ' / label for field 6
TFORM6 = 'PE(230) ' / data format of the field
EXTNAME = 'MATRIX ' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'RSP_MATRIX' / dataset is a spectral response matrix
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
HDUCLAS3= 'REDIST ' / photon redistribution matrix (only)
TELESCOP= 'SODART ' / mission/satellite name
INSTRUME= 'SIXA ' / instrument/detector name
DETNAM = '1 ' / specific detector name in use
FILTER = 'none ' / filter in use
DETCHANS= 1024 / total number of detector channels
LO_THRES= 0.000100 / lower threshold for stored matrix
EFFAREA = 1.000000 / Area scaling factor
RMFVERSN= '1992a ' / OGIP classification of FITS format
HISTORY Response matrix computed by fits.pro
HISTORY FITS RMF extension written by WTRMF1 3.2.0
COMMENT
CCLS0001= 'CPF '
CCNM0001= 'EBOUNDS '
CDTP0001= 'DATA '
CVSD0001= '1997-04-11'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch Energy Bounds'
CBD10001= 'ENERG(0.1-20.0)keV'
END
SIMPLE = T / file does conform to FITS standard
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
CONTENT = 'RESPONSE' / spectral response matrix
ORIGIN = 'SIXA team' / origin of FITS file
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 12 / width of table in bytes
NAXIS2 = 1005 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields in each row
TTYPE1 = 'ENERG_LO' / label for field 1
TFORM1 = 'E ' / data format of the field: 4-byte REAL
TUNIT1 = 'keV ' / physical unit of field
TTYPE2 = 'ENERG_HI' / label for field 2
TFORM2 = 'E ' / data format of the field: 4-byte REAL
TUNIT2 = 'keV ' / physical unit of field
TTYPE3 = 'SPECRESP' / label for field 3
TFORM3 = 'E ' / data format of the field: 4-byte REAL
TUNIT3 = 'cm**2 ' / physical unit of field
EXTNAME = 'SPECRESP' / name of this binary table extension
HDUCLASS= 'OGIP ' / format conforms to OGIP standard
HDUCLAS1= 'RESPONSE' / dataset relates to spectral response
HDUVERS1= '1.0.0 ' / Version of family of formats
HDUCLAS2= 'SPECRESP' / dataset contains spectral response
HDUVERS2= '1.1.0 ' / Version of format (OGIP memo CAL/GEN/92-002a)
TELESCOP= 'SODART ' / mission/satellite name
INSTRUME= 'SIXA ' / instrument/detector name
DETNAM = '1 ' / specific detector name in use
FILTER = 'none ' / filter in use
ARFVERSN= '1992a ' / OGIP classification of FITS format
PHAFILE = 'SIXA.PHA' / PHA file for which this ARF created
HISTORY Response matrix computed by fits.pro
HISTORY FITS ARF extension written by WTARF1 1.0.1
COMMENT
CCLS0001= 'CPF '
CCNM0001= 'SPECRESP'
CDTP0001= 'DATA '
CVSD0001= '1997-04-11'
CVST0001= '00:00:00'
CDES0001= 'Pre-launch ARF'
CBD10001= 'ENERG(0.1-20.0)keV'
END
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
END
XTENSION= 'BINTABLE' / binary table extension
BITPIX = 8 / 8-bit bytes
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 947 / width of table in bytes
NAXIS2 = 3 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 18 / number of fields in each row
TTYPE1 = 'TELESCOP' / label for field 1
TFORM1 = '10A ' / data format of field: ASCII Character
TTYPE2 = 'INSTRUME' / label for field 2
TFORM2 = '10A ' / data format of field: ASCII Character
TTYPE3 = 'DETNAM ' / label for field 3
TFORM3 = '20A ' / data format of field: ASCII Character
TTYPE4 = 'FILTER ' / label for field 4
TFORM4 = '10A ' / data format of field: ASCII Character
TTYPE5 = 'CAL_DEV ' / label for field 5
TFORM5 = '20A ' / data format of field: ASCII Character
TTYPE6 = 'CAL_DIR ' / label for field 6
TFORM6 = '70A ' / data format of field: ASCII Character
TTYPE7 = 'CAL_FILE' / label for field 7
TFORM7 = '40A ' / data format of field: ASCII Character
TTYPE8 = 'CAL_CLAS' / label for field 8
TFORM8 = '3A ' / data format of field: ASCII Character
TTYPE9 = 'CAL_DTYP' / label for field 9
TFORM9 = '4A ' / data format of field: ASCII Character
TTYPE10 = 'CAL_CNAM' / label for field 10
TFORM10 = '20A ' / data format of field: ASCII Character
TTYPE11 = 'CAL_CBD ' / label for field 11
TFORM11 = '630A70 ' / data format of field: ASCII Character
TTYPE12 = 'CAL_XNO ' / label for field 12
TFORM12 = 'I ' / data format of field: 2-byte INTEGER
TTYPE13 = 'CAL_VSD ' / label for field 13
TFORM13 = '10A ' / data format of field: ASCII Character
TTYPE14 = 'CAL_VST ' / label for field 14
TFORM14 = '8A ' / data format of field: ASCII Character
TTYPE15 = 'REF_TIME' / label for field 15
TFORM15 = 'D ' / data format of field: 8-byte DOUBLE
TTYPE16 = 'CAL_QUAL' / label for field 16
TFORM16 = 'I ' / data format of field: 2-byte INTEGER
TTYPE17 = 'CAL_DATE' / label for field 17
TFORM17 = '10A ' / data format of field: ASCII Character
TTYPE18 = 'CAL_DESC' / label for field 18
TFORM18 = '70A ' / data format of field: ASCII Character
EXTNAME = 'CIF ' / name of this binary table extension
CIFVERSN= ' 1.1 ' / Version of CIF format
END
TELESCOP INSTRUME DETNAM FILTER
1 SODART SIXA 1 none
2 SODART SIXA 1 none
3 SODART SIXA 1 none
CAL_DEV
1 ONLINE
2 ONLINE
3 ONLINE
CAL_DIR
1 data/sxg/sixa
2 data/sxg/sixa
3 data/sxg/sixa
CAL_FILE CAL_CLAS CAL_DTYP
1 sixa.arf CPF DATA
2 sixa.rmf CPF DATA
3 sixa.rmf CPF DATA
CAL_CNAM
1 SPECRESP
2 MATRIX
3 EBOUNDS
CAL_CBD
1 ENERG(0.1-20.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
2 ENERG(0.1-20.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
3 ENERG(0.1-20.0)keV
NONE
NONE
NONE
NONE
NONE
NONE
NONE
NONE
CAL_XNO CAL_VSD CAL_VST REF_TIME CAL_QUAL CAL_DATE
1 1 1997-04-11 00:00:00 5.054900000000000E+04 0 1999-11-11
2 1 1997-04-11 00:00:00 5.054900000000000E+04 0 1999-11-11
3 2 1997-04-11 00:00:00 5.054900000000000E+04 0 1999-11-11
CAL_DESC
1 Pre-launch ARF
2 Pre-launch Response Matrix
3 Pre-launch Energy Bounds