Minimize In-Flight Calibrations during Optimized Resolution (OR) mission L2 v 7.03
Calibration Description Frequency
Offset

Offset calibration

800 seconds
ILS

Instrument Line Shape

1 orbit
WCC

Wear Control Cycle

automatically commanded by ESOC after each instrument transition to Heater

RGC (IF8)

Radiometric Gain Calibration (1 scan of 200 Black Body + 200 Deep Space sweeps)

1 day
LOS

Line Of Sight measurements

10 days
PD

Passive Decontamination, commanded during the hottest period of the year, i.e. May and October

6 months
PD-IF16-IF4-IF16 Passive Decontamination, followed by the calibration sequence IF16 – IF4 – IF16 6 months