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Hubble Space Telescope
Instrument Summaries

Instrument-Specific Reference Information


More detail on instrument performance may be found at the following Instrument Handbook links & in the table below:
Table 3.1, ACS IHB
Table 5.1, WFC3 IHB
Table 1.3, WFPC2 IHB
Table 7.1, STIS IHB
Table 2.1 and Table 7.1, NICMOS IHB

Instrument Characteristics


Detector Pixel Format (Pixels) Plate Scale (arcsec/pixel) Field of View (arcsec) Full Well Default Drizzled Output Units DQ Flag Definitions

ACS/WFC 2 20484096 (50-pixel gap) ~0.05 202202 84,700 e– e–/sec ACS DHB Table 3.4
ACS/HRC 10241024 ~0.0280.025 2926 155,000 e– e–/sec  
ACS/SBC 10241024 ~0.0340.030 34.630.8 (Total) detector linearity limit: 200,000 counts/sec;
Pixel linearity limit: ~22 counts/sec/pixel
e–/sec  
WFC3/UVIS 2 x 20514096 (31-pixel gap) 0.04 162162 63,000–72,000e– e–/sec WFC3 DHB (Table 2.6)
WFC3/IR 10241024 (10141014 active) 0.13 136123 77,900 e– (mean) e–/sec  
WFPC2
(PC1)
800x800 0.0455 36x36 ~90,000 e–
Digital Saturation: ~27,000 e– (Gain=7); ~53,000 e– (Gain=14)
DN/sec WFPC2 DHB Table 3.3
WFPC2/WF2,3,4, 800x800 (each chip) 0.0996 80x80 (each chip) ~90,000 e– ;
Digital Saturation: ~27,000 e– (Gain=7); ~53,000 e– (Gain=14)
DN/sec  
STIS/CCD 1024x1024 0.05078 52x52 144,000 e– (inner);
120,000 e– (outer);
Saturation: 33,000 e− at GAIN=1; 144,000 e− at GAIN=4
e–/sec STIS DHB Table 2.8
NICMOS/NIC1 256256 0.043 11x11 26,900 ADU;
saturation 21,500 ADU (Gain = 5.4 e–/ADU)
DN/sec NICMOS DHB Table 2.3
NICMOS/NIC2 256256 0.075 19.2x19.2 28,200 ADU;
saturation 20,500 ADU (Gain = 5.4 e–/ADU)
DN/sec  
NICMOS/NIC3 256256 0.2 51.2x51.2 32,800 ADU;
saturation 27,400 ADU (Gain = 5.4 e–/ADU)
DN/sec