Tools and Status
The Advanced Camera for Surveys (ACS) is a third-generation Hubble Space Telescope (HST) instrument installed in March 2002 during HST Servicing Mission 3B. The ACS CCD Electronics Box and Low Voltage Power Supply incrementally failed in June 2006 and January 2007, causing the loss of the ACS Wide Field Channel (WFC) and High Resolution Channel (HRC).
The replacement components (CEB-R and LVPS-R) installed on 16 May 2009 during HST Servicing Mission 4 (SM4), successfully restored the function of the WFC but not that of the HRC. Consequently, only the WFC and the Solar Blind Channel (SBC) are available to observers.
HRC is not operational.
SBC is operating nominally.
WFC is operating nominally.
Web Tools and Helpful Links
ACS Instrument Resources
Recently Published ISRs
Most Recent ISRs
(ACS ISR 2020-05) Anneal Efficacy in the Advanced Camera for Surveys Wide Field Channel
(ACS ISR 2020-04) Accounting for Readout Dark in Superbiases II: Subarrays and Updated Readout Dark Measurement
(ACS ISR 2020-03) Irregularity in Ceiling of Analog-to-Digital Conversion for Post-SM4 ACS/WFC Images
(ACS ISR 2020-01) Post-SM4 ACS/WFC L-Flats and Photometric Errors from Observations of Stellar Fields
Recently Published STANs
Filter ACS STANs
ACS STAN October 2019
ACS Software Updates
- Released April 10, 2020
- Programmatic interface for ACS Photometric CTE released
acsphotctemodule to query ACS Photometric CTE Calculator
- Removed Python 2 support
- Documentation updates
- Released on September 30, 2019
CALACS updated to Version 10.2.1