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Hubble Space Telescope
Advanced Camera for Surveys

The Advanced Camera for Surveys (ACS) is a third-generation Hubble Space Telescope (HST) instrument. ACS was installed during HST servicing mission 3B. During servicing mission 4, the ACS WFC was repaired after an electronics malfunction in 2007.

Release of CALACS 2012.2 and new CTE-corrected data products

ACS Web Tools

ACS Zeropoint Calculator

ACS CTE Correction Calculator

Late Breaking News

News Archive

11 Sept 2017 ISR 17-12 by A. Bellini et al, "The Hubble Space Telescope "Program of Last Resort" is now posted.

16 June 2017 ISR 17-05 by D. Borncamp et al, "Pixel History for Advanced Camera for Surveys Wide Field Channel" is now posted.

03 May 2017 ISR 17-04 by R.J. Avila "Updated Measurements of ACS/SBC Dark Rates" is now posted.

17 April 2017 ISR 17-03 by D. Golimowski et al, "New Subarray Readout Patterns for the ACS Wide Field Channel" is now posted.

13 March 2017 ISR 17-02 by S.L Hoffman and R.J Avila "Updated MDRIZTAB Parameters for ACS/WFC" is now posted.

24 Feb 2017 ISR 17-01 by J.E. Ryon and N.A. Grogin "Sink Pixels in ACS/WFC" is now posted.

08 Nov 2016 ACS Zeropoints web-tool is now available.

08 Nov 2016 Interactive web-tools demonstrating dragons breath and edge glow are now available.

04 Nov 2016 ISR 16-06 by B. PorterField et al, "Here Be Dragons: Characterization of ACS/WFC Scattered Light Anomalies" is now posted.

07 Oct 2016 ISR 16-05 by R.J Avila and M. Chiaberge "Photometric Aperture Corrections for the ACS/SBC" is now posted.

19 Aug 2016 ISR 16-03 by Ralph C. Bohlin "Perfecting the Photometric Calibration of the ACS CCD Cameras" is now posted.

04 May 2016 The ACS Team has now updated its Data Handbook to Version 8.0.

25 Mar 2016 ISR 16-02 by R.J. Avila "SBC Internal Lamp P-flat Monitoring" is now posted.

16 Mar 2016 The new WFC distortion solution has been integrated into the OPUS pipeline and is now available. More details are available on the Distortion Page.

Current ACS Status

SBC is operating nominally.

HRC is not operational.

WFC is operating nominally.