ChaMP X-ray Data Products
A. Naming Convention
B. SQL Tables
C. Data Files fits, ps, etc.
A. Naming Convention
srcid = XS{obsid}{energyband}{ccdid}_srcno
eg., XS12345B9_001
energy band:
B : 0.3 - 8.0 keV
S : 0.3 - 2.5 keV
S1 : 0.3 - 0.9 keV
S2 : 0.9 - 2.5 keV
H : 2.5 - 8.0 keV
(Bc : 0.5 - 8.0 keV)
(Sc : 0.5 - 2.0 keV)
(Hc : 2.0 - 8.0 keV)
HR = H-S / H+S
C21 = -logS2+logS1
C32 = -logH+logS2
netB = srcB - bkgB / barea_ratio
error_netB = [ (1.0+sqrt(srcB +0.75))^2 + ((1.0+sqrt(bkgB+0.75))/barea_ratio)^2 ]^0.5
SNR = netB/error_netB
rateB = 1000.0 * neB / exposure * [max_ea / mean_ea] [exposure and max_ea from "xfield_exposure"]
error_rateB = 1000.0 * error_netB / exposure * [max_ea / mean_ea]
(max_ea = maximum effective area for a given CCD)
(mean_ea = mean effective area within the source extraction radius determined from an exposure map)
Note. rateB is calculated as if the source is at the location of max_ea in a given chip.
It is (approximately) the aim point only when it is S3 for ACIS-S or I0-3 for ACIS-I.
((dwk - ECF at aim and at the max exp differ by 2 % in S3 and ??% in I0-3))
Then, fluxB is later calculated by ECF based on arf/rmf (with QE-degradation corrected)
which are determined at the location of max_ea in a given chip.
If the chip is eithert S3 or I0-3,
then both rateB and fluxB are fully corrected for vignetting.
If the chip is not S3 or I0-3,
then rateB is partially corrected for vignetting,
while fluxB is fully corrected for vignetting.
HR = netH-netS / netH+netS
error_HR = (4.0 / netB**4 * (netS**2 * error_netH**2 + netH**2 * error_netS**2))**0.5
C21 = -log(netS2)+log(netS1)
error_C21 = ((1.0/netS1/2.302585*error_netS1)**2 + (1.0/netS2/2.302585*error_netS2)**2)**0.5
B. SQL Tables
Use /proj/champx3/sw/bin/list_sql.ksh to get a list of sql tables.
1.X-ray observations
xobs X-ray observation
xpipe_stat XPIPE status
xao12sample list of obsids selected in AO 1+2 (full sample)
x1sample list of obsids selected for the 1st X-ray paper
2. XPIPE products
xfield_exposure list of effective exposure
xwav_source wavdetect output
xsource_prop list of source properties
xsource_prop_addlist of additional source properties
xrefinepos refining wavdetect position
xextended extendedness
xvariable timing
xsrc_flag source flag
xvv V&V results of X-ray data
xsrc_flag_add source flag added by V&V
xsrc_flag_rem source flag removed by V&V
xovlp_dual_sm refined photometry for small overlapping sources
xovlp_dual_lg refined photometry for large overlapping sources
xecf ECFs per chip per obsid (10^-13 erg/s/cm2 per 1 cnt/sec)
3. From optical obs
xoffset not ready yet
4. From other catalogs
xusno10 USNO A2 sources within 10" from the X-ray source position
xusnoB1_30am USNO B1 sources within 30' from the field center
IR2mass30 2MASS sources within 30' from the X-ray field center
1. X-ray observation
xao12sample
(one entry per obsid - obsid list selected in AO1+2 )
name type length
-------------------------- -----------
obsid intn 4
fp_detect varchar 10
xobs
(one entry per obsid/obi)
name type length
---------------- ---------- -----------
obsid int 4
obi int 1
seq_nbr varchar 6
targname varchar 20
ra float 8 in deg
dec float 8 in deg
roll float 8 in deg
obs_date datetimn 8
tstart floatn 8 in sec
tstop floatn 8 in sec
fp_detect varchar 10
readout_detect varchar 15
datamode varchar 15
readmode varchar 10
xpipe_stat
(one entry per obsid)
name type length
--------------- ---------- -----------
obsid intn 4
seq_nbr varchar 8
obs_date datetimn 8
tstop_tstart_ks floatn 8 in sec
fp_detect varchar 10
readout_detect varchar 15
readmode varchar 10
xpipe_done varchar 5 yes, no
category varchar 10 champ, champlane, simul, TEST ...
x1sample
(one entry per obsid - obsid list selected for the 1st X-ray paper)
name type length
-------------------------- -----------
obsid intn 4
fp_detect varchar 10
2. XPIPE output
xfield_exposure
(one entry per chip per energyband)
name type length
---------------- ---------- -----------
obsid intn 4
energyband varchar 2 # at 1.5 keV
ccdid intn 2
exposure floatn 8
max_ea floatn 8 # maximum effective area (or maximum value in exposure map)
xsource_prop
(one entry per source)
name type length
---------------- ---------- -----------
obsid intn 4
energyband varchar 2
ccdid intn 2
srcno intn 4
srcid varchar 15 # XS{obsid}{energyband}{ccdid}_srcno
x floatn 8
y floatn 8
error_x floatn 8
error_y floatn 8
ra floatn 8
dec floatn 8
src_radius floatn 8 # in arcsec
netB floatn 8
error_netB floatn 8
SNR floatn 8
netS floatn 8
error_netS floatn 8
netH floatn 8
error_netH floatn 8
netS1 floatn 8
error_netS1 floatn 8
netS2 floatn 8
error_netS2 floatn 8
HR floatn 8 # (H-S / H+S)
error_HR floatn 8
C21 floatn 8 # (-logS2+logS1)
error_C21 floatn 8
C32 floatn 8 # (-logH+logS2)
error_C32 floatn 8
rateB floatn 8 # cnt in 1,000 s
fluxB floatn 8 # cnt/cm2 in 1,000,000 s (DO NOT USE)
srcB floatn 8
bkgB floatn 8
srcS floatn 8
bkgS floatn 8
srcH floatn 8
bkgH floatn 8
srcS1 floatn 8
bkgS1 floatn 8
srcS2 floatn 8
bkgS2 floatn 8
barea_ratio floatn 8
mean_ea floatn 8
mean_bk_ea floatn 8
nearbysrc intn 4 # number of nearby source within the src_radius
nearbysrc_bk intn 4 # number of nearby source within the bkgd extraction annulus
xsource_prop_add
(additional source properties)
name type length
------------------------------------------
obsid intn 4
energyband varchar 2
ccdid intn 2
srcno intn 4
srcid varchar 15
src_radius floatn 8 # in arcsec
netSc floatn 8 # net counts in 0.5-2.0 keV
error_netSc floatn 8
netHc floatn 8 # net counts in 2.0-8.0 keV
error_netHc floatn 8
srcSc floatn 8
bkgSc floatn 8
srcHc floatn 8
bkgHc floatn 8
xwav_source
(wavdetect output)
name type length
--------------------------- -----------
obsid intn 4
energyband varchar 3
ccdid intn 2
ra floatn 8
dec floatn 8
ra_err floatn 8
dec_err floatn 8
x floatn 8
y floatn 8
x_err floatn 8
y_err floatn 8
npixsou intn 4
net_counts floatn 8
net_counts_err floatn 8
bkg_counts floatn 8
bkg_counts_err floatn 8
net_rate floatn 8
net_rate_err floatn 8
bkg_rate floatn 8
bkg_rate_err floatn 8
exptime floatn 8
exptime_err floatn 8
src_significance floatn 8
psf_size floatn 8
multi_correl_max intn 4
shape varchar 12
r_maj floatn 8
r_min floatn 8
rotang floatn 8
psfratio floatn 8
component intn 4
srcid varchar 15
xrefinepos
name type length
-------------------------- -----------
srcid varchar 15
x floatn 8 new position x
y floatn 8 new position y
x_err floatn 8
y_err floatn 8
r_maj floatn 8
r_min floatn 8
rotang floatn 8
xextended
name type length
------------------ ---------- -----------
srcid varchar 15
x floatn 8
y floatn 8
psf floatn 8 arcsec
sigma_gauss floatn 8 arcsec
brightness_gauss floatn 8
core_radius floatn 8
brightness_beta floatn 8
xvariable
name type length
------------------ ---------- -----------
srcid varchar 15
nchange intn 4 variable if nchange > 1
rho floatn 8
sigma floatn 8
rho_sigma floatn 8
dt_min floatn 8
dt_max floatn 8
dt_median floatn 8
xsrc_flag
(Definition)
name type length
---------------------------- -----------
srcid varchar 15
flag intn 4
value floatn 8
srcid2 varchar 15
xvv
name type length
------------------------- -----------
obsid intn 4
vvid varchar 11 yyyydddnnnn
xsrc_flag_add
name type length
------------------------- -----------
srcid varchar 15
vvdate varchar 11 yyyydddnnnn
flag intn 4
comment varchar 50
xsrc_flag_rem
name type length
------------------------- -----------
srcid varchar 15
vvdate varchar 11 yyyydddnnnn
flag intn 4
comment varchar 50
xovlp_dual_sm
name type length
------------------------ -----------
srcid1 nchar 15
x floatn 8 pixel
y floatn 8 pixel
radius floatn 8 pixel
pa floatn 8 deg
alpha floatn 8 deg ; 1/2 of opening angle
thetamin floatn 8 deg
thetamax floatn 8 deg
extrapol floatn 8 correction factor = area ratio
rawB intn 4
rawH intn 4
rawS intn 4
rawS1 intn 4
rawS2 intn 4
srcid2 nchar 15
dist floatn 8 pixel
infdB floatn 8 corrected raw counts
infdS floatn 8
infdH floatn 8
infdS1 floatn 8
infdS2 floatn 8
xovlp_dual_lg
name type length
------------------------ -----------
srcid1 nchar 15
srcid2 nchar 15
dist floatn 8 pixel
core_rad intn 2 pixel
flag intn 1
totB intn 4
totH intn 4
totS intn 4
totS1 intn 4
totS2 intn 4
coreB intn 4
coreH intn 4
coreS intn 4
coreS1 intn 4
coreS2 intn 4
infdB floatn 8
infdH floatn 8
infdS floatn 8
infdS1 floatn 8
infdS2 floatn 8
xecf
name type length
----------------- -----------
obsid intn 4
ccdid intn 2
gamma floatn 8 photon index
galnh floatn 8 N(H) in 10^20 cm-2
ecf_B floatn 8
ecf_S floatn 8
ecf_H floatn 8
ecf_Bc floatn 8
ecf_Sc floatn 8
ecf_Hc floatn 8
opt varchar 10 option=aim, target, maxexp
# ECF for 10^-13 erg/sec/cm2 per 1 cnt/sec
#
# rate flux
# B : 0.3-8.0 0.3-8.0
# S : 0.3-2.5 0.5-2.0
# H : 2.5-8.0 2.0-8.0
# Bc: 0.5-8.0 0.5-8.0
# Sc: 0.5-2.0 0.5-2.0
# Hc: 2.0-8.0 2.0-8.0
3. optical image (from RAC)
xoffset
(Not ready yet)
name type length
------------------------- -----------
obsid int 4
del_ra float 8 in deg
del_dec float 8 in deg
del_roll float 8 in deg
4. From other catalogs
xusno10
name type length
------------------------- -----------
srcid varchar 15
usnoa2_id varchar 20
ra floatn 8
dec floatn 8
magb floatn 8
magr floatn 8
plate intn 4
arcsec floatn 8 offset between X-ray and USNO positions
xusnoB1_30am
name type length
------------------------- -----------
obsid int 4
usnob1_id char(20) 20
ra float 8
dec float 8
magb1 float 8
magr1 float 8
magb2 float 8
magr2 float 8
magn float 8
pm int 4 ?
ni int 4 ?
pmra float 8 proper motion in "/century
pmdec float 8 proper motion in "/century
arcsec float 8 offset in " between field center and USNO position
IR2mass_30am
(Help)
name type length
------------------------ -----------
obsid intn 4
dist_x floatn 8 offset between X field center and 2MASS source
pang_x floatn 8
ra_x floatn 8 X-ray field center
dec_x floatn 8 X-ray field center
ra floatn 8
dec floatn 8
j_m floatn 8
j_msig floatn 8
h_m floatn 8
h_msig floatn 8
k_m floatn 8
k_msig floatn 8
rd_flg varchar 3
cc_flg varchar 3
extd_flg intn 4
mp_flg intn 4
id_opt varchar 1 U for USNO-A, T for Tycho
b_m_opt floatn 8
r_m_opt floatn 8
dist_opt floatn 8
phi_opt intn 4
C. Data Files
(fits, ps etc.)
(Data products are in /proj/ChaMP/XPIPE/OBS${obsid}/XPIPE/.)
1. SDP products (input to XPIPE)
acisf${obsid}N00{version}_evt2.fits
axaff${obsid}_${obi}N00{version}_obs0a.par
acisf${obsid}_${obi}N00{version}_pbk0.lis and acisf*pbk0.fits
acisf${obsid}_${obi}N00{version}_aoff1.fits
2. ChaMP XPIPE products
A. events list and image files after additional correction.
evt2.fits = acisf${obsid}N00{version}_evt2_CORRBPIXGAIN_DT.fits
evt2_ccdid${ccdid}.fits = evt2_ccdid${ccdid}_B.fits
evt2_ccdid${ccdid}_Bimg.fits
evt2_ccdid${ccdid}_Himg.fits
evt2_ccdid${ccdid}_Simg.fits
evt2_xy_fits = "evt2.fits[energy=300:8000][cols x,y]" for display only
if ccdid==8,
evt2_ccdid8_beforedestreak.fits
evt2_ccdid8_destreak.fits
B. intermediate files
acisf${obsid}_${obi}N00{version}_bpix1_new.fits
acisf${obsid}_${obi}N00{version}_aoff1_sim.fits
acisf${obsid}_${obi}N00{version}_asphist_${ccdid}.fits
acisf${obsid}_${obi}N00{version}_instmap_${ccdid}.fits
acisf${obsid}_${obi}N00{version}_expmap_${ccdid}.fits = expmap_${ccdid}.fits
C. background historgram
evt2_ccdid${ccdid}_bkhis.fits
evt2_ccdid${ccdid}_bkhis.ps
D. wavelet source lists, region files, and plots.
wav${ccdid}_${energyband}.log
wav${ccdid}_${energyband}_source.fits
OBSID${obsid}_ccdid${ccdid}_${energyband}_{ext,psf}.ps
E. region files
For old DS9 and EE95% determined with /soft/ciao/data/psfsize_20000830.fit
wav${ccdid}_${energyband}_ext.reg
wav${ccdid}_${energyband}_ext_radec.reg
wav${ccdid}_${energyband}_lab.reg
wav${ccdid}_${energyband}_psf.reg
wav${ccdid}_${energyband}_psf_sig_radec.reg
wav${ccdid}_${energyband}_psf_sig_radec_lab.reg
wav${ccdid}_${energyband}_refinepos.reg
wav${ccdid}_${energyband}_sig.reg
wav_all_B_psf_sig_radec.reg
wav_all_B_psf_sig_radec_lab.reg
[note. *_psf_* from wavdetect (39.3% EE)]
For ds9 3.0
wav${ccdid}_${energyband}_psf_sig_radec2.reg
wav${ccdid}_${energyband}_psf_sig_radec_lab2.reg
wav_all2_B_ext_radec.reg
wav_all2_B_psf_sig_radec.reg
wav_all2_B_psf_sig_radec_lab.reg
EE 95% determined with /soft/ciao/data/psfsize20010416.fits
wav${ccdid}_${energyband}_ext2.reg
wav${ccdid}_${energyband}_ext2_radec.reg
wav_all2_B_ext2_radec.reg
F. Source properties and
with wav?_ext_radec.reg (EE 95% determined with /soft/ciao/data/psfsize_20000830.fits)
source_prop_ccdid${ccdid}_B.out1
source_prop_ccdid${ccdid}_B.out2
source_prop_ccdid${ccdid}_B.out_detail1
source_prop_ccdid${ccdid}_B.out_add
with wav?_ext2_radec.reg (EE 95% determined with /soft/ciao/data/psfsize20010416.fits)
source_prop2_ccdid${ccdid}_B.out1
source_prop2_ccdid${ccdid}_B.out2
source_prop2_ccdid${ccdid}_B.out_detail1
source_prop2_ccdid${ccdid}_B.out_add
G. Other ps/jpg files
Image_fullfield.ps/jpg
Champ X-ray pipeline
Last modified: Thu Aug 19 13:35:02 EDT 2004