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Next: The SODART Mirror Modules Up: Viewing Constraints Previous: Viewing Constraints

Determining SXG Viewing Opportunities

JMAN can be used to determine areas of the sky visible for a given time interval, or dates that a given target position can be observed. In the following example, JMAN is used to determine the visible regions of the sky for SODART observations during the interval from 1-Jan-1999 to 31-Dec-1999 (MJD 51179.00-51210.0). User responses to program prompts appear at the far right. 

> jman
  Data dir:/proj/sxg/soft/jman/dat

     Jet-X Observation Constraints vsn 1.05 16 Oct 96   
 
     1 - Jet-X visibility, 1 orbit       
     2 - Jet-X visibility, period        
     3 - Jet-X Point dates               
     4 - Jet-X vis, OXS on, any date     
     5 - Jet-X Point check, OXS on       
     6 - OXS visibility                  
     7 - Update Parameters               
     8 - Subsidiary plots                
     9 - Close current plot device       
    10 - Help                            
    11 - Return/Exit
 Option\1 [integer]:                                                         2
 Orbit data spans MJD 51162.3 to 51894.3                                      
 Enter Start of period, either MJD or dd.d/mm/yy, default 20.31/12/98
 Date\51167.31 [character]:                                            51179.0
 Orbit data spans MJD 51162.3 to 51894.3                                       
 Enter End of period,   either MJD or dd.d/mm/yy, default  1/01/99
 Date\51179.00 [character]:                                            51210.0
 Visible any time (else all time)\T [logical]:                               T
 Graphics device/type (? to see list, default /NULL):                        ?
 PGPLOT v5.0.3 Copyright 1994 California Institute of Technology
 Device types available:
 /GIF   (Graphics Interchange Format file, landscape orientation)
 /VGIF  (Graphics Interchange Format file, portrait orientation)
 /NULL  (Null device, no output)
 /PPM   (Portable Pixel Map file, landscape orientation)
 /VPPM  (Portable Pixel Map file, portrait orientation)
 /PS    (PostScript file, landscape orientation)
 /VPS   (PostScript file, portrait orientation)
 /CPS   (Colour PostScript file, landscape orientation)
 /VCPS  (Colour PostScript file, portrait orientation)
 /TEK4010 (Tektronix 4010 terminal)
 /GF    (GraphOn Tek terminal emulator)
 /RETRO (Retrographics VT640 Tek emulator)
 /XTERM (XTERM Tek terminal emulator)
 /TK4100 (Tektronix 4100 terminals)
 /VT125 (DEC VT125 and other REGIS terminals)
 /WD    (X Window Dump file, landscape orientation)
 /VWD   (X Window Dump file, portrait orientation)
 /XDISP (pgdisp or figdisp server)
 /XWINDOW (X window window@node:display.screen/xw)
 /XSERVE  (A /XWINDOW window that persists for re-use)
 Graphics device/type (? to see list, default /NULL):                      /PS
Calculating constraint, MJD 51180.3
Calculating constraint, MJD 51184.3
Calculating constraint, MJD 51188.3
Calculating constraint, MJD 51192.3
Calculating constraint, MJD 51196.3
Calculating constraint, MJD 51200.3
Calculating constraint, MJD 51204.2
Calculating constraint, MJD 51208.2
 
     Options
 
     1 - Another device                
     2 - Return/Exit
 Device_option\2 [integer]:                                                  2
 
     Jet-X Observation Constraints vsn 1.05 16 Oct 96   
 
     1 - Jet-X visibility, 1 orbit       
     2 - Jet-X visibility, period        
     3 - Jet-X Point dates               
     4 - Jet-X vis, OXS on, any date     
     5 - Jet-X Point check, OXS on       
     6 - OXS visibility                  
     7 - Update Parameters               
     8 - Subsidiary plots                
     9 - Close current plot device       
    10 - Help                            
    11 - Return/Exit
 Option\11 [integer]:                                                       11
>

The selection of /PS for graphics device directs the output to a postscript file named pgplot.ps, in the directory from which the program was executed.

Example plots of areas of the sky visible to the SODART telescopes or the OXS are shown in Figures 5 - 10 and Figures 11 - 16, respectively. JMAN can be obtained from the SXGCF via the WWW (http://hea-www.harvard.edu/SXG/jman_sxg.html) or directly from RAL via anonymous ftp (ftp://sdcjx2.bnsc.rl.ac.uk/pub/jetx/jman/).

  
Figure 3: Guide Star and Sun Constraints on SXG Viewing Direction
\begin{figure} \centering\leavevmode \epsfxsize=.95\textwidth \epsfbox{/data/tom/obsguide/obsguide/constraints/constr.epsi} \end{figure}


  
Figure 4: OXS Viewing Constraints
\begin{figure} \centering\leavevmode \epsfxsize=.95\textwidth \epsfbox{/data/tom/obsguide/obsguide/constraints/oxsconstr.epsi} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...AN2000.ps voffset=330 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 5: SODART Telescope Viewing Opportunities for Jan. & Feb. 2000 Figures 5 - 10 show visible areas of the sky (RA vs. Dec.) at one-month intervals. Here, ``Jet-X'' refers to the pointing direction of the Jet-X and (co-aligned) SODART telescopes.
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=275 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{1.5in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...AR2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 6: SODART Telescope Viewing Opportunities for March & April 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...AY2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 7: SODART Telescope Viewing Opportunities for May & June 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...UL2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 8: SODART Telescope Viewing Opportunities for July & Aug. 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...EP2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 9: SODART Telescope Viewing Opportunities for Sept. & Oct. 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...OV2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 10: SODART Telescope Viewing Opportunities for Nov. & Dec. 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...AN2000.ps voffset=330 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 11: OXS Viewing Opportunities for Jan. & Feb. 2000 Figures 11 - 16 show visible areas of the sky (RA vs. Dec.) at one-month intervals.
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=275 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{1.5in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...AR2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 12: OXS Viewing Opportunities for March & April 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...AY2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 13: OXS Viewing Opportunities for May & June 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...UL2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 14: OXS Viewing Opportunities for July & Aug. 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...EP2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 15: OXS Viewing Opportunities for Sept. & Oct. 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}


\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...OV2000.ps voffset=325 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \end{figure}


  
Figure 16: OXS Viewing Opportunities for Nov. & Dec. 2000
\begin{figure} \centering\leavevmode \vbox to3.0in{\rule{0pt}{3.0in}} \special{p... ...et=250 hoffset=-300 vscale=75 hscale=75 angle=-90.0} \vspace{2.0in} \end{figure}

next up previous contents
Next: The SODART Mirror Modules Up: Viewing Constraints Previous: Viewing Constraints
Tomas P. Girnius
1999-01-21