Instrument Announcements

A tag for the instrument must also be used.

GMOS-S CCD2 issues

August 12th, 2022

The repair attempted during July was not successful, and the problem on CCD2 (amplifier #5) persists. On the other hand, the noise patterns on CCD2 and CCD3 are gone.

The situation will remain like this during semester 22B since the only possible solution requires a major intervention, which is not planned for the current semester.

IGRINS available

July 28th, 2022

After the heavy snowtorms that affected Pachon, telescope operations have resumed, and IGRINS will be available for a short time starting tonight until the beginning of the yearly engineering shutdown.

Zorro run extended

July 15th, 2022

Heavy snowfall at Cerro Pachon has completely wiped out the Zorro run originally scheduled between July 11 and 17th. We expect the telescope can be operating again on Monday 18th, and the Zorro run has been extended until Friday 22nd.

GNIRS returns to telescope and IFU status

July 8th, 2022

GNIRS has been reinstalled on the telescope and is ready for science use as of July 4th, 2022. All issues with the filter wheels have been fixed and other refurbishment projects have been completed. All slit spectral modes are now available in addition to imaging. The Low Resolution (natural seeing) IFU is installed and is undergoing commissioning. It will be released for science use at a later date. Fabrication of the High Resolution (AO-assisted) IFU is ongoing and is expected to arrive in Hilo at the end of 2022.

Altair unavailable

May 19th, 2022

The Gemini North Adaptive Optics system, Altair, is currently offline due to a recurrent and intermittent issue with its deformable mirror (DM). Please email your contact scientist if you have any questions or concerns about the potential impact on your program.

GNIRS to be Removed from the Telescope for the IFU Installation

April 25th, 2022

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.