IO-I
IO-I
Band
State
Description
IO:I is the near-infrared imaging component of the IO suite of instruments. It uses a 2048x2048 pixel Hawaii 2RG 1.7μm cutoff detector with a field of view of 6.3 arcminutes, a pixel scale of 0.18 arcsec, and currently a single H-band (1.5-1.8 micron) filter. It became available as a common-user instrument in August 2015.
Technical Data
Detector: Teledyne 2048 x 2048 Hawaii-2RG 1.7μm cutoff HgCdTe Array
Pixel size: 18.0 x 18.0 microns
Pixel scale: 0.184 arcsec/pixel (unbinned)
Field of view : 6.27 x 6.27 arcmin
Preamp gain: 18dB
Read noise (2-pair Fowler mode): 15e-
Dark current: <0.01e-/s
Binning: None initially available
Min./Max. Exposure: from 1×6sec to 34×60=2040sec
Readout time: 1.45s (non-destructive)
Windowed modes: None initially available
Gain: 1.5e-/ADU
Saturation Limit: 93ke-
Filter Set: H only [Transmission data]
Quantum Efficiency (figures supplied by manufacturer):
Wavelength(nm) Quantum Efficiency(%)
800 58
1000 57
1230 73
1500 86
1720 50
