(ACS ISR 2020-07) Unusual Horizontal Charge Overflow from Saturated CCD Pixels in the ACS WFC: Discovery and Remediation
October 15, 2020Y. Cohen and N. A. Grogin
Tools and Status
ACS
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.
Current Status
HRC is not operational.
SBC is operating nominally.
WFC is operating nominally.
Improved Absolute Astrometry for WFC3 and ACS
Web Tools and Helpful Links
Advice for Planning ACS Observations
ACS Photometric CTE Calculator
Program Information
ACS Instrument Resources
Recent News
Recently Published ISRs
Listing Results
Results: 5
(ACS ISR 2020-06) Validation of Reduced Operate Anneal Mode in the Advanced Camera for Surveys Wide Field Channel
August 05, 2020M. C. McDonald, N. A. Grogin
(ACS ISR 2019-07) Advice for Planning ACS Observations
June 26, 2020R. A. Lucas et al.
(ACS ISR 2020-05) Anneal Efficacy in the Advanced Camera for Surveys Wide Field Channel
April 30, 2020M. C. McDonald et al.
(ACS ISR 2020-04) Accounting for Readout Dark in Superbiases II: Subarrays and Updated Readout Dark Measurement
April 15, 2020J. E. Ryon, N. A. Grogin, T. D. Desjardins
Recently Published STANs
Listing Results
Results: 1
ACS STAN October 2019
October 25, 2019
ACS Software Updates
ACSTOOLS v3.2.0
- Released April 10, 2020
- Programmatic interface for ACS Photometric CTE released
- NEW
acsphotctemodule to query ACS Photometric CTE Calculator - Removed Python 2 support
- Documentation updates
HSTCAL v2.3.0
- Released on September 30, 2019
-
CALACS updated to Version 10.2.1