ISR 2024-04: Updating the Sensitivity Curves of the STIS Echelles (Post-SM4)
August 21, 2024Svea Hernandez, TalaWanda Monroe, Joleen Carlberg
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About STIS
The Space Telescope Imaging Spectrograph (STIS) was installed on the Hubble Space Telescope (HST) during the second servicing mission (SM2) in 1997. STIS is a versatile imaging spectrograph, providing spatially resolved spectroscopy from 1150 to 10300 Å at low to medium spectral resolution, high spatial resolution echelle spectroscopy in the UV, solar-blind imaging in the UV, time-tagging of photons for high time resolution in the UV, and direct and coronagraphic imaging in the optical.
STIS operated on Side-1 electronics until 2001, when it experienced an electronic failure. It then switched to the redundant set of electronics, Side-2, where it operated as normal until 2004, when a power supply on Side-2 failed. STIS remained inoperable until it was repaired successfully in 2009 during Servicing Mission 4 (SM4). STIS has since been operating on Side-2 electronics with all ultraviolet and optical channels.
Current Status
STIS is Operational.
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ISR 2024-03: Rederivation of STIS Secondary Echelle Mode Traces
June 10, 2024Matthew Siebert, TalaWanda Monroe, Svea Hernandez -
ISR 2024-02: Recalibration of Pre-SM4 STIS Echelle Throughputs
March 15, 2024Matthew Siebert, Joleen Carlberg, Svea Hernandez, TalaWanda Monroe -
ISR 2024-01: Safety Acquisitions: Redundancy for non-repeatable multi-orbit STIS visits
January 30, 2024Matthew M. Dallas & Matthew R. Siebert -
ISR 2022-07: Update of the STIS CTE Correction Formula for Stellar Spectra
October 25, 2022R. C. Bohlin and S. Lockwood