Status: Spectrograph: Observatory Instrument
Spectrograph camera Specs:(Note; under construction, Jeff Hickey Oct. 5, 2008)
Slit 1 x 30 arcsecond slit
Wavelength coverage 1.0 - 2.4 micron
Spectral resolution 2500-2700
Sampling ~ 2.7 pixels per resolution element
Minimum integration time 4 seconds
Gain ~ 3.8 e-/DN
Saturation level ~ 28000 DN (conservatively)
Data sampling CDS, Fowler, or sample-up-the ramp.
Read Noise 10 e- (CDS), 5 e- (8 samples)
3.5 e- (16 samples)
Dark Current ~ 0.085 e-/sec
Time to background limit ~ 300 seconds
Status: Guider/Imager camera: Observatory Instrument
Guider/Imager Specs:
Wavelength 1-2.5 micron
Size of Field 4' X 4'
Scale .234"/pixel
Minimum integration time 1.8 seconds
MCT Engineering Grade Hawaii II CCD 1024 X 1024
Data sampling CDS,
CCD linear to 30,000 ADU, however,
in differencing mode continuously exposed,
the displayed image goes non-linear ~18,000 ADU
Read Noise <10 e- (CDS)
last updated by J. Hickey Oct. 5, 2008