Post-SM4 ACS/WFC Bias I: The Read Noise History (ACS ISR 2019-02)
March 28, 2019T. D. Desjardins
Tools and Status
ACS
The Advanced Camera for Surveys (ACS) is a third-generation Hubble Space Telescope (HST) instrument installed 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.
Web Tools and Helpful Links
ACS Photometric CTE Calculator
Program Information
ACS Instrument Resources
Recent News
Recently Published ISRs
Listing Results
Results: 5
The ACS/WFC G800L Grism: I. Long-term Stability (ACS ISR 2019-01)
February 28, 2019N. Hathi et al.
ACS/WFC Parallel CTE from EPER Tests (ACS ISR 2018-09)
December 20, 2018J. Ryon et al.
Focus-diverse, empirical PSF models for the ACS/WFC (ACS ISR 2018-08)
November 26, 2018A. Bellini et al.
Mitigating Elevated Dark Rates in SBC Imaging (ACS ISR 2018-07)
October 26, 2018R.J. Avila et al.
ACS Software Updates
ACSTOOLS v3.0.0
- Released on Feb 28th, 2019
- NEW
acszptmodule to query ACS Zeropoints Calculator - Removed Python 2 support
- Documentation updates
HSTCAL v2.2.0
- Released on Nov. 6th, 2018
- Updated DARKCORR step of
ACS2D. - Updated BLEVCORR step of
ACSCCD -
Implemented CTE forward modeling functionality