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STIS STANs

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(31 total)

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  1. July 2025 STAN

    July 23, 2025
    STIS NEWSLETTERS

    This STAN is focused on providing information and guidelines for the preparation and submission of HST Cycle 33 GO Phase II proposals, for both new and experienced users of STIS. The first section gives policies, tips, and tricks for preparing successful Phase II proposals, followed by STIS instrument news, including recommendations for wavecal exposure times for some FUV settings. The section on STIS resources lists some software tools for the examination and analysis of STIS data. This STAN also includes updates to the STScI Helpdesk. 

  2. June 2025 STAN

    June 5, 2025
    STIS NEWSLETTERS

    In this STAN, the STIS team presents updates on the STIS flux recalibration of the M-modes (release 4), as well as information on the relevant STIS presentation that will be given at the 246th American Astronomical Society (AAS) meeting in Anchorage, Alaska.

  3. March 2025 STAN

    March 13, 2025
    STIS NEWSLETTERS

    In this STAN, the STIS Team presents Cycle 33 documentation updates and news to STIS users submitting Phase I proposals, as well as updates regarding the STScI Helpdesk, updates to the FUV-MAMA Time Dependent Sensitivity corrections, and improvements to the post-SM4 STIS NUV-MAMA dark correction.

  4. January 2025 STAN

    January 31, 2025
    STIS NEWSLETTERS

    In this STAN, the STIS team presents new Jupyter Notebooks on Hubble Advanced Spectral Products (HASP) for data diagnostics and wavelength adjustments, as well as a tool to test coronagraphic observation feasibility. The STIS team also presents a new Instrument Science Report on STIS Cycle 30 Calibration Programs and summarizes the STIS presentations given at the 245th American Astronomical Society (AAS) meeting in National Harbor.

  5. October 2024 STAN

    October 28, 2024
    STIS NEWSLETTERS

    In this STAN, the STIS Team presents a new CCD cosmic ray monitor, as well as updates to the latest version of the STIS Data Handbook, a new Jupyter notebook on Low Count Uncertainties in STIS, and an instrument science report on Updating the Sensitivity Curves of the STIS Echelles (Post-SM4).

  6. July 2024 STAN

    July 10, 2024
    STIS NEWSLETTERS

    This STAN is focused on providing information and guidelines for the preparation and submission of HST Cycle 32 GO Phase II proposals, for both new and experienced users of STIS. The first section gives tips and tricks for the recently announced Reduced Gyro Mode operations, followed by an updated listing of policies, tips, and tricks for preparing successful Phase II proposals. The section on STIS instrument news includes new recommendations for wavecal exposure times for some FUV settings. The section on STIS resources lists some recently developed software tools for the examination and analysis of STIS data and notes several recent STIS presentations and Instrument Science Reports.

  7. March 2024 STAN

    March 8, 2024
    STIS NEWSLETTERS

    In this STAN, the STIS Team presents Cycle 32 updates to documentation and news to STIS users submitting Phase I proposals, as well as updates regarding stis_cti and time dependent sensitivity.

  8. February 2024 STAN

    February 26, 2024
    STIS NEWSLETTERS

    In this STAN we announce the delivery of the Hubble Advanced Spectral Products (HASP) program, as well as summarize the STIS presentations given at the 243rd American Astronomical Society (AAS) meeting in New Orleans.

  9. August 2023 STAN

    August 25, 2023
    STIS NEWSLETTERS

    This STAN is focused on providing information and guidelines for the preparation and submission of HST Cycle 31 GO phase II proposals, for both new and experienced users of STIS. The first section gives an updated listing of policies, tips, and tricks for preparing successful phase II proposals. The section on STIS instrument news includes new recommendations for wavecal exposure times for some FUV settings. The section on STIS resources lists some recently developed software tools for the examination and analysis of STIS data and notes several recent STIS presentations and Instrument Science Reports.

  10. July 2023 STAN

    August 1, 2023
    STIS NEWSLETTERS

    In this STAN, we announce the delivery and implementation of updates to the reference files for the STIS NUV time-dependent sensitivity and for selected STIS spectroscopic and imaging modes contained in the third installment of the STIS flux recalibration effort.

  11. May 2023 STAN

    May 31, 2023
    STIS NEWSLETTERS

    In this STAN we announce the alpha release of the Pandeia-based ETC for HST instruments and the complete delivery of the updated G750L reference file. 

  12. April 2023 STAN

    April 3, 2023
    STIS NEWSLETTERS

    In this STAN, the STIS Team presents Cycle 31 updates to documentation and news to STIS users submitting Phase I proposals, including updates to the FUV-MAMA dark rate adopted for ETC v31.1. Additionally, we recapitulate STIS' posters and presentations at the 241st AAS Winter conference that may also assist users submitting a proposal.

  13. January 2023 STAN

    January 5, 2023
    STIS NEWSLETTERS

    In this STAN we announce the delivery of updated reference files for the second STIS flux recalibration release and a presentation poster detailing these updates at the upcoming winter AAS, new introductory Jupyter Notebooks, and the stenv migration.

  14. July 2022 STAN

    July 6, 2022
    STIS NEWSLETTERS

    This STAN discusses policies, tips and tricks for preparing and submitting Phase II Proposals ahead of the Cycle 30 Phase II deadline. It also includes STIS instrument news on exposure times for wavecals. The third article summarizes the latest software tools for data analysis, namely Coronagraphy Visualization tool, Defringing package, and a DrizzlePac notebook. The final article provides summaries of recent STIS presentations, Instrument Science Reports, and papers.

  15. April 2022 STAN

    April 20, 2022
    STIS NEWSLETTERS

    In this STAN we announce the delivery of updated reference files for the first STIS flux recalibration release and a new Jupyter Notebook for aligning and combining STIS images with DrizzlePac.

Callout

For STANs produced prior to August 2016, please contact the help desk.

End callout

 

Last Updated: 05/21/2025

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Please contact the HST Help Desk with any questions.