Observatory Support Services

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Observatory Support
News and Advisories
Pointing
CDBS
Focus
Reports
Frequently Asked Questions
User Support

Pointing Information and Science Instrument Aperture Locations Current operational SI aperture relations in the HST focal plane; positions, scales, orientations. Information on SIAF file updates. Discussion and interpretation of observation log or `jitter' files, attitude algorithms, and advice for analyzing pointing. Plotting tool giving HST roll to put a given aperture at a given position and orientation on the sky. (Under Construction)

Calibration Operations and Data Calibration data from pre-launch to present. Spectra of HST standards and astronomical databases. Special CDBS data used for the throughput simulators and Exposure Time Calculators.

Focus and the OTA Desorption and secondary mirror move history. Orbital and longer term focus variation. Determining focus.

Instruments - | - STScI

Questions? Send e-mail to help@stsci.edu

22 Apr 1998