Science Operations Announcements

Gemini South Telescope resuming operations this week.

July 25th, 2022

Gemini South telescope has remained closed the entire past week after heavy snowfall over Pachon. The large quantity of snow accumulated over the summit during the two events between July 9 and July 15 prevented the telescope from being open, with large accumulation of snow and ice on the roads as well.  Additionally, commercial power was lost and its return is expected sometime during this week, although there is still no certainty about that.

Gemini South Telescope closed due to snow accumulation, July 11-25

July 11th, 2022

Gemini South Telescope will remain closed through at least July 25th due to a large accumulation of snow and ice on the dome and roads.   It is uncertain when the roads will be passable and a crew can travel to the summit to begin clearing the large amount of accumulated snow on the dome.  Additionally, commercial power was lost and its return is also not expected until after the roads are cleared.

Observing databases offline June 1

May 31st, 2022

The Gemini observing databases will be offline for several hours on Wednesday, June 1 while we perform software updates.

During this time the following services will be unavailable:

  • Observing Tool synchronizations and file transfers
  • Phase I Tool guide star probability queries
  • Target of Opportunity triggers

The new 2022B Observing Tool will be available after the update and will be required to access the observing databases.

Gemini IRAF Patch for New Flamingos 2 Filters

April 22nd, 2022

A patch release for Gemini IRAF v1.14 is available.

The replacement of two filters and the reshuffling of another in Flamingos 2 necessitated additions and modifications to lookup tables and modifications to the code. This patch release contains only the affected files. The patch is to be applied on-top of an already installed Gemini IRAF v1.14 package.

Installation instructions and content of the patch are available in gemini_v114_patch1.txt.

GS Telescope shutdown on February 21st due to P2WFS repairs

February 15th, 2022

It has been found after extensive troubleshooting that the Peripheral Wave Front Sensor 2 (P2WFS) has a mechanical issue and is out of order. To address this issue the P2WFS will have to be replaced in the telescope by a dummy unit while it is being repaired. We are planning for this intervention starting Monday February 21st and the removal and installation of the dummy unit will take two days and thus the telescope will not be available from the Night February 21st to 22nd.