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Proceedings Article

On-orbit alignment and imaging performance of the HST advanced camera for surveys

[+] Author Affiliations
George F. Hartig, John E. Krist

Space Telescope Science Institute (USA)

Andre R. Martel, Holland C. Ford

Johns Hopkins Univ. (USA)

Garth D. Illingworth

Univ. of California Observatories/Lick Observatory (USA)

Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, 532 (February 26, 2003); doi:10.1117/12.459787
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From Conference Volume 4854

  • Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation
  • J. Chris Blades; Oswald H. W. Siegmund
  • Waikoloa, Hawai'i, USA | August 22, 2002

abstract

The Advanced Camera for Surveys (ACS), installed in the Hubble Space Telescope in March 2002, has significantly extended HST's imaging capabilities. We describe the on-orbit optical alignment procedures and results, detailing the excellent image quality performance achieved. Comparison is made with the instrument specifications, ground test results and published performance expectations. The residual aberration content over the field of each channel is described and compared with the optical model, and various other performance measures, including sharpness and encircled energy are treated. The effects of the telescope focus oscillations due to thermal variations ("breathing") and image positional stability are also discussed.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

George F. Hartig ; John E. Krist ; Andre R. Martel ; Holland C. Ford and Garth D. Illingworth
"On-orbit alignment and imaging performance of the HST advanced camera for surveys", Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, 532 (February 26, 2003); doi:10.1117/12.459787; http://dx.doi.org/10.1117/12.459787


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