On April 28th, 2022 GNIRS is planned to be removed from the telescope and warmed up in order to perform the GNIRS IFU installation and various refurbishment work, which includes replacement of ball bearings for both filter wheels. It is foreseen to have GNIRS back on sky for the IFU commissioning on July 6th, 2022. During this period, NIRI will replace GNIRS on the telescope.
In January 2022, itermittent problems began to occur with GNIRS' filter wheel two (FW2). This was found to be due to a faulty ball bearing, which increased drag and friction on the wheel assembly. In order to prevent damage to FW2 or other components internal to GNIRS, a decision was made to avoid FW2 movements entirely. As a result, as of March 15th, 2022, observations were limited to cross dispersed mode only. The faulty ball bearing is to be substituted when GNIRS is warmed up to install the IFU at the end of April 2022.
Gemini is now accepting proposals for observing time in Semester 2022B. The submission deadline varies with participant. A new version of the Phase I Tool (PIT) has been released to support proposal submissions.
Gemini is now accepting proposals for observing time in Semester 2022A. The submission deadline varies with participant. A new version of the Phase I Tool (PIT) has been released to support proposal submissions.
April 24th, 2022: GNIRS will be removed from the telescope on April 28th, 2022 and is planned to be unavailable for use until July 6th, 2022 due to the GNIRS IFU installation and refurbishment projects.
May 17th, 2021: The GNIRS IFU installation, originally planned for 2021B, has been postponed until 2022. Therefore, GNIRS will be available for the entire 2021B semester.
Gemini North is accepting proposals for the Fast Turnaround (FT) program. We are not yet accepting proposals for Gemini South. Here, we give information specific to this proposal cycle. Please see the other FT pages - particularly the rules - for general information about the program. FT-specific proposal templates must now be used for all FT proposals; see the "PIT information" section below.
Gemini North is accepting proposals for the Fast Turnaround (FT) program. We are not yet accepting proposals for Gemini South. Here, we give information specific to this proposal cycle. Please see the other FT pages - particularly the rules - for general information about the program. FT-specific proposal templates must now be used for all FT proposals; see the "PIT information" section below.
Gemini North is accepting proposals for the Fast Turnaround (FT) program. We are not yet accepting proposals for Gemini South. Here, we give information specific to this proposal cycle. Please see the other FT pages - particularly the rules - for general information about the program. FT-specific proposal templates must now be used for all FT proposals; see the "PIT information" section below.
2018 Nov 26 - Dec 14
GNIRS was removed from the telescope to work on filter wheel #2 which had been showing increasing instances of not going into position reliably. The filter wheel datum switches were replaced on both filter mechanisms, a temporary light baffle was removed from wheel #1, and dust was removed from the filters using CO2 snow.
2018 Jun 20-25
Re-seated the detector controller boards, replaced the sequencer board, and replaced a voltage regulator. The read noise levels are now back to normal.
2018 Jun 5