Ginga Specific Software: Program PREDGIN90
Program predgin90 calculates the sun angles for any
Ginga observation. Satllite pointing directions less than
90° from the Sun are likely to be affected by solar X-rays
entering the LAC.
Predgin90 produces four ASCII files. The user specified
output file (LIST; see below)
and temp.vis contain the optimum sun angle range. The files
sangl_1.lis and sangl_2.lis contain the actual sun angle
for a given day number and MJD respectively.
Predgin90 requires six input parameters. The QX parameter
system is used to read these parameters.
| LIST |
The name of the output ASCII file containing the optimum sun
angle range (the default is lp.lis). |
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| YEAR |
The year required (the last two digits should be used to specify the
year). The Ginga mission lasted from 1987 to 1991. |
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| MONTH |
The month required (up to two digits should be used to specify the
month). |
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| DAY |
The day required (up to two digits should be used to specify the day).
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| NOM |
The name of the source in the Ginga field of view. |
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| POSSTR |
The position of the source. The position should be in the form
hh mm ss dd mm ss. |
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