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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

27 Oct 2017 ISR 17-08 by S.L Hoffmann and J. Anderson, "A Study of PSF Models for ACS/WFC" is now posted.

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.

Current ACS Status

SBC is operating nominally.

HRC is not operational.

WFC is operating nominally.