This page presents a World-Wide-Web link into the CADC's Gemini
Science Archive (GSA), the database of observations obtained with
the Gemini North Telescope on Mauna Kea, Hawaii, and the Gemini
South Telescope on Cerro Pachon, Chile. It allows searches by important
criteria such as object name and science program ID, and presents the
results of the search in a tabular format. The GSA Data Retrieval
facility allows archive users to download archival data directly to
their own computers.
The current release of the GSA is version 1.75. See the
link in the "Help" menu for a summary of recent additions to the
Proprietary data can also be retrieved, but only by the Principal
Investigator (PI) of the science program in question and any colleagues
the PI has granted access to that program's data. These users
must also register
with the CADC in order to enable authorization tests to be made before
such proprietary data is accessed.
The current proprietary period for Gemini data is 18
months from the time of the observation.
PIs can register their Gemini Program ID's with the CADC
and access their data by selecting the
Access your PI Data item
in the "Proprietary Data Access" menu.
To perform a search for the Gemini Science Archive, simply select
one of the data sources to query in the menu at the top. In most cases
you will want to start with a search of the science catalogue, but a
search of the data superset catalogue may be useful for retrieval of
calibration data. Weather and environmental data can also be viewed.
Use the Retrieve Gemini SV Data link in the "GSA
Queries" menu to retrieve Gemini System Verification data
The "Help" menu will get you started if
you're confused by the query form. Select
for more detailed instructions on making efficient use of the query
form. In most cases descriptions of each field in a form can
be retrieved by clicking on the field's link.