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Hubble Space Telescope
Instrument Summaries

Instrument-Specific Reference Information


HST Handbooks


DrizzlePac Handbook (2012)
MultiDrizzle Handbook (2009)

Introduction to the HST Data Handbooks

ACS Data Handbook
ACS Instrument Handbook

WFC3 Data Handbook
WFC3 Instrument Handbook

STIS Data Handbook
STIS Instrument Handbook

NICMOS Data Handbook
NICMOS Instrument Handbook

WFPC2 Data Handbook
WFPC2 Instrument Handbook

Data Quality Flags


ACS Flags in the DQ Array (Table 3.4, ACS Data Handbook, v. 6.0)

WFC3 Flags in the DQ Array (Table 2.5, WFC3 Data Handbook, v. 2.1)

WFPC2 Flags in the DQ Array (Table 3.3, WFPC2 Data Handbook, v. 5.0)

STIS/CCD Flags in the DQ Array (Table 2.8, STIS Data Handbook, v. 6.0)

NICMOS Flags in the DQ Array (Table 2.3, NICMOS Data Handbook, v. 8.0)


Instrument Characteristics


Detector Pixel Format (Pixels) Plate Scale (arcsec/pixel) Field of View (arcsec) Full Well Default AstroDrizzle Output Units

ACS/WFC 2 20484096 (50-pixel gap) ~0.05 202202 84,700 e– e–/sec
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/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/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 inner portion of detector: 144,000 e–
outer portion of detector: 120,000 e–
Saturation limit: 33,000 e− at GAIN=1; 144,000 e− at GAIN=4
e–/sec

NICMOS/NIC1 256256 0.043 11x11 26,900 ADU;
saturation 21,500 ADU (Gain = 5.4 e–/ADU)
DN/sec
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

For additional information about Instrument characteristics, please refer to these links

Table 3.1, ACS Instrument Handbook, v. 12.0

Table 5.1, WFC3 Instrument Handbook, v. 5.0

Table 1.3, WFPC2 Instrument Handbook, v. 5.0

Table 7.1, STIS Instrument Handbook, v. 12.0

Table 2.1 and Table 7.1, NICMOS Instrument Handbook, v. 11.0