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Supermassive Black Hole Lurks at Dawn of the Universe

Updated Observing Tool released

An updated 2015A Observing Tool is now available for download and is recommended for all users. Please see the release notes for the list of bug fixes. Installation instructions are linked off of the Observing Tool web page.

Gemini North Architectural & Engineering Services RFQ

Gemini North Observatory is a five-story facility that houses an 8-meter telescope and support instrumentation, equipment, and work space. Gemini seeks professional architectural and engineering (A&E) services via a professional services agreement for upcoming projects anticipated to total several hundred hours of architectural, structural, electrical, and/or design engineering services. Gemini seeks to pursue additional projects upon successful completion of the first project, the GN Storage Mezzanine.

NIR Baseline Calibrations

A set of baseline calibrations will be taken for all Gemini queue observations in order to ensure the long-term utility of the data in the archive. This baseline calibration set varies from mode to mode, but includes all the data deemed necessary to produce scientifically useful data.

Baseline Calibrations

Baseline calibrations include:


  1. Biases
  2. GCAL flat field
  3. GCAL ThAr arc
  4. Flux standard star 


Observing Constraints

To reach the desired instrument performance GPI is constrained both in the suitable weather conditions and the elevation of the target being observed. 

TEXES (North)

Overview of TEXES' Capabilities

TEXES, the Texas Echelon Cross Echelle Spectrograph is a high resolution (R ~ 4,000-100,000) mid-infrared (5-25 micron) spectrometer, which was first offered at Gemini North as a visitor instrument in Semester 2006B. TEXES will be available at Gemini North as a visitor instrument in Semester 2014B.


See the Status and Availability page for important information on using TEXES at Gemini.

New version of the Gemini IRAF package released (v1.13)

A new version of the Gemini IRAF package (v1.13) has been released. This version is required for processing GMOS-S Hamamatsu CCD data and includes configuration files and examples. Please see the Processing Software page for more information.

DD and PW proposals require 2015A PIT

Director's Discretionary (DD) and Poor Weather (PW) proposals must use the 2015A PIT. See the PIT Version Table for more information and download links.

Gemini’s "Fast Turnaround" Observing Mode is LIVE!