Ginga Specific Software: Program ATTCORR
Program attcorr performs an attitude correction for
Ginga data files. Currently the following data types can be
handled:
- 48 spectral channel MPC1 and MPC2 cubes
- 12
spectral channel MPC3 cubes
- TIME series
The correction uses collimator transmission data derived from Crab
Scan data by the Japanese. The output file contains corrected
DATA and VARIANCE arrays as well as a new object,
TRANSMISSION, which represents the high-energy
transmission. Collimator reflection can be corrected for if necessary
in the first two cases. The transmission data may not be sufficiently
accurate to produce adequately corrected spectral files from a
CUBE. It should be checked using an uncorrected file and the ad
hoc spectral fitting reflection correction (see gcs@star.le.ac.uk for
details).
A Ginga CUBE or TIME series to be corrected.
A corrected Ginga CUBE or TIME series.
Attcorr requires four input parameters. The QX parameter
system is used to read these parameters.
| ATT_DATIN | The name of the input file
containing the data to be corrected. |
|
| | ATT_DATOUT | The name of the output file
created, containing corrected data. |
|
| | ATT_TR_FILE | The name of
the file containing collimator transmission data (the default is
$XACAL/trans.dat) |
|
| | ATT_DO_REF | Apply collimator reflection
correction (the default is No). |
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