|
For more detailed information about Detector ID numbers, etc., refer to the
IRAS Explanatory
Supplement(IRAS Catalogs and Atlases:
Explanatory Supplement (1988, ed. C.A. Beichman, G. Neugebauer, H.J. Habing,
P.E. Clegg and T.J. Chester,
Washington, DC: GPO).
Each header record contains:
| Name |
Datatype |
Description |
| IFLAG |
(I*2) |
Flag set to zero to indicate raw
data |
| JBAND |
(I*2) |
Band numbers 1--4 correspond to
12, 25, 60, 100 µm |
| NPTS |
(I*2) |
Number of flux/position samples
in this scan |
| JDET |
(I*2) |
Detector ID number
1--62 |
| SOPOBS |
(R*4) |
SOP/OBS (Satellite Operating
Plan/Observation) ID
SOPOBS = SOP + OBS/100
The SOP/OBS
identifies when in the IRAS mission the scans were taken. |
| DIST |
(R*4) |
Closest approach of this scan to
the plate center in arcminutes |
| ANGLE |
(R*4) |
Angle of scan path, in degrees E
of N |
| IDIR |
(I*4) |
Flag set to 1 to indicate scan
in the survey direction |
| UTCS |
(R*8) |
UTCS time in seconds since 1981,
January 1.0 UT |
| FLAT1 |
(R*4) |
Linear flat-field baseline at
first flux sample in scan in W/m2 |
| FLAT2 |
(R*4) |
Linear flat-field baseline at
last flux sample in scan in W/m2 |
Each scan record contains:
| Name |
Datatype |
Description |
| X(J) |
(I*2) |
X coordinate of Jth sample in
arcseconds |
| Y(J) |
(I*2) |
Y coordinate of Jth sample in
arcseconds |
| FLUX(J) |
(R*4) |
Flux of Jth sample in
W/m2 |
where J runs from 1 to NPTS
|
