Instrument Information
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| IDENTIFIER |
urn:nasa:pds:context:instrument:steward-kittpeak.bok2m3.90prime::1.1
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| NAME |
90PRIME MOSAIC CAMERA
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| TYPE |
IMAGER
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| DESCRIPTION |
There are four CCDs each with 4032 columns x 4096 rows physical pixels and 20 pixelsof overscan for each amp.Each CCD is read out from 4 amplifiers located in each cornerEach single amplifier image extension contains data from one amplifier, so it has2016+20=2032 columns and 2048 rowsCurrent system gain is defined in the image header, and is about 1.5 electrons/DN(Data Numbers)Dark current is ~7 electrons/pixel/hour.Full well is ~90,000 electrons or about the 65k DN ADC 16-bit ADC limit.The CCDs are linear to 65k DN, but stay below about 60,000 DN to be safe.Noise is about 7-8 electrons in the active imaging area in most channels. A few lesswell behaved channels sometimes measure around 11 electrons.Readout time plus file creating time is 35 seconds.The operating temperature is about -135 C.
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