|Detector format||1024 x 1024|
|Spectral range||0.75 - 2.40 µm for imaging mode
1.10 - 1.80 µm for spectroscopic mode
|Plate scale||0.211 +/- 0.001''/pixel|
|Total field of view||3.6' x 3.6'|
|Operating temperature||77 K|
|Dark current||0.02 e-/sec|
|Full well capacity||55 000 ADU/110.000 e-|
|Linearity (1%)||40 000 ADU/80.000 e-|
|Mean quantum efficiency (detector only)||
|Minimum integration time||0.1 sec|
|Maximum integration time||1 hour (not recommanded)|
|Readout time (full frame)||0.5 second (fast read) to 2s (slow read)|
Orientation: North is up and East is right, within about 1 degree. The exact orientation varies slightly from one setup of the instrument to the next one, so for a more accurate measurement ask your SA who may have determined this value during setup, or can otherwise suggest an astrometric calibration field that you can briefly observe.
Subraster: any size is allowed, as long as the number of pixels is a power of two, anywhere within one of the 4 quadrants.
The center of the focal plane array is the intersection of the 4 individual chips that make up the whole detector. It often shows residual low level artefacts, and we therefore recommand that you move your source slightly off center.
Orientation: North up, East right within 1 degree for a Cassegrain Bonnette angle of zero.
Distortions: < 0.3% for the whole field.
Internal flexure: TBD.
Filters: 16 positions, including one blank for dark exposures and one empty position in each of the two filter wheels.