Function: ircc_times Purpose: Give exact time of sampling of individual IRAS detectors Category: IR File: ircc_times.c Author: P.R. Roelfsema Use: REAL IRCC_TIMES( DETNO ) Input integer IRCC_TIMES Returns the time offset w.r.t. satcal ticks at which data for a given detector were taken. For non existing detector numbers zero is returned. DETNO Detector number as given in IRAS Epl. Suppl. Description: For example, take detector 9 (band III), at satcal 123456. CCTIMS(9) will return -0.04573 meaning that the first sample of detector 9 in this 'second' is not taken at satcal 123456.0000 but at satcal 123455.95427; the next samples being at the proper equidistant interval of 1/8 tick as appropriate for band III. See IRAS SAT/Ground Interface Control Document section 3.4.3 It is not clear what the LRS timing is derived from. The values fro the electronic delay times were obtained by com- paring the times given in the IRAS SAT/GICD sec. 3.4.3 with times as measured by the FSS group (FSS expl. supp., table Appendix II.2). The LRS delay times were calculated from the theoretical behaviour of the 12Hz low-pass filters. Updates: Aug 18, 1990: PRR, Adapted from GEISHA Nov 26, 1990: PRR, Added LRS delay times