Selected operating mode characteristics for the science instruments nominal CCD modes.
|frequency||mode||(Ser. × Par.)|
|SM||833 kHz||Full Frame||2 × 2|
|AF1||400 kHz||Window||2 × 1|
|AF||103 kHz||Window||1 × 1, 12 × 1|
|BP||164 kHz||Window||1 × 1, 12 × 1|
|RP||164 kHz||Window||1 × 1, 12 × 1|
|RVS-HRa||172kHz||Window||1 × 1, 10 × 1|
|CCD mode||System||Charge||TDI gate|
It was originally planned to also use a low-resolution RVS mode (RVS-LR) for acquisition of fainter spectra. However, its use was discarded at the end of the commissioning phase owing to some small thermal instabilities introduced into the payload as a result of the constant sky-dependent reconfiguring of the detectors.
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