Technical aspects of the Space Telescope Imaging Spectrograph Repair (STIS-R)

S. A. Rinehart; J. Domber; T. Faulkner; T. Gull; R. Kimble; M. Klappenberger; D. Leckrone; M. Niedner; C. Proffitt; H. Smith; B. Woodgate

doi:10.1117/12.789248

12 July 2008 Technical aspects of the Space Telescope Imaging Spectrograph Repair (STIS-R)

S. A. Rinehart, J. Domber, T. Faulkner, T. Gull, R. Kimble, M. Klappenberger, D. Leckrone, M. Niedner, C. Proffitt, H. Smith, B. Woodgate

Author Affiliations +

Proceedings Volume 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter; 70104R (2008) https://doi.org/10.1117/12.789248
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

In August 2004, the Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) ceased operation due to a failure of the 5V mechanism power converter in the Side 2 Low Voltage Power Supply (LVPS2). The failure precluded movement of any STIS mechanism and, because of the earlier (2001) loss of the Side 1 electronics chain, left the instrument shuttered and in safe mode after 7.5 years of science operations. A team was assembled to analyze the fault and to determine if STIS repair (STIS-R) was feasible. The team conclusively pinpointed the Side 2 failure to the 5V mechanism converter, and began studying EVA techniques for opening STIS during Servicing Mission 4 (SM4) to replace the failed LVPS2 board. The restoration of STIS functionality via surgical repair by astronauts has by now reached a mature and final design state, and will, along with a similar repair procedure for the Advanced Camera for Surveys (ACS), represent a first for Hubble servicing. STIS-R will restore full scientific functionality of the spectrograph on Side 2, while Side 1 will remain inoperative. Because of the high degree of complementarity between STIS and the new Cosmic Origins Spectrograph (COS, to be installed during SM4)), successful repair of the older spectrograph is an important scientific objective. In this presentation, we focus on the technical aspects associated with STIS-R.

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S. A. Rinehart, J. Domber, T. Faulkner, T. Gull, R. Kimble, M. Klappenberger, D. Leckrone, M. Niedner, C. Proffitt, H. Smith, and B. Woodgate "Technical aspects of the Space Telescope Imaging Spectrograph Repair (STIS-R)", Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 70104R (12 July 2008); https://doi.org/10.1117/12.789248

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