Calibration

 

General calibration strategy

Calibration philosophy
Secondary standards for ISOPHOT
Calibration of individual ISOPHOT observing modes

Point source photometry on C100/C200 minimaps (60-200 micron)
Point source photometry on C100/C200 sparse maps (60-200 micron)
Mid-infrared spectro-photometry with ISOPHOT-S
Absolute surface brightness photometry
Point source photometry from C100/C200 chopped observations (60-200 micron)
Cross-calibration

ISOPHOT vs. IRAS on point sources
ISOPHOT vs. Spitzer on point sources
ISOPHOT vs. DIRBE on extended sources