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Next: 13.3 DIE power calibration Up: 13 Calibration G Products Previous: 13.1 Overview

Subsections


13.2 Observation time dependent calibration  


Description Parameter:		section 7.4.6
Processing Level:		SPD 
Usage in processing:		section 7.4.6
File Type: 			Binary FITS table
File names:			PTIMEDEP

During the mission two events took place that directly affected calibration parameters of the instrument:

Consequently, the OLP must use different sets of Cal G files depending on the date and time of the observation. This calibration file lists the names of the Cal G files that are affected together with the date and time when the change took place. Depending on the time of the observation the appropriate Cal G files are selected.

13.2.1 Product PTIMEDEP: PHT calibration time dependency  

Binary FITS table with record length 80. The record fields are:


Field		Offset	Number	Type	Description
CALGROOT	0	1	C*12	Root name: referred to when file is opened
CALGFILE	12	1	C*12	Corresponding filename
CALGTIME	24	1	C*11	Time from which this file applies
		 	 	 	in yydddhhmmss
CALGCOMM	35	1	C*45	Optional comment

next up previous contents
Next: 13.3 DIE power calibration Up: 13 Calibration G Products Previous: 13.1 Overview

ISOPHOT Data Users Manual, Version 4.1, SAI/95-220/Dc