COS Design Reference Mission andGround System Volume Requirements

Details COS Design Reference Mission andGround System Volume Requirements COS Design Reference Mission andGround System Volume Requirements

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cos..rept....1k&link_type=abstract

COS Instrument Science Report 99-01.0, 42 pages

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Hubble Space Telescope, Hst, Space Telescope Science Institute, Cos, Cosmic Origins Spectrograph

Scientific paper

We describe a scenario for the expected usage of COS that incorporates predicted instrumental capabilities, the COS IDT DRM as currently envisioned, community input, astudy of planned and actual usage of the previous HST spectrographs (FOS, GHRS, andSTIS), and estimates of the time to be allocated to COS by future TACs. From this input we derive, for times of normal and stressed usage, estimates of the expected frequency of COS science- and calibration-related exposures (~12/day), average downlink volume(~600 Mbits/day), archive volume (TBD), and calibration reference file OPUS on-linestorage volume (~1 Gbyte). We also provide summaries of COS instrumental capabilitiesand predicted sensitivities in comparison with those of the other HST spectrographs.

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