Fermi Gamma-ray Space Telescope

The Fermi Science Support Center (FSSC) runs the guest investigator program, creates and maintains the mission time line, provides analysis tools for the scientific community, and archives and serves the Fermi data. This web site is the portal to Fermi for all guest investigators.

This view shows the entire sky at energies greater than 1 GeV based on five years of data from the LAT instrument on NASA's Fermi Gamma-ray Space Telescope. Brighter colors indicate brighter gamma-ray sources.
This view shows the entire sky at energies greater than 1 GeV based on five years of data from the LAT
instrument on NASA's Fermi Gamma-ray Space Telescope. Brighter colors indicate brighter gamma-ray sources.
Image Credit: NASA/DOE/Fermi LAT Collaboration

Look into the "Resources" section for finding schedules, publications, useful links etc. The "Proposals" section is where you will be able to find the relevant information and tools to prepare and submit proposals for guest investigator projects. At "Data" you will be able to access the Fermi databases and find the software to analyse them. Address all questions and requests to the helpdesk in "Help".

Fermi Observations for MW 645

Mission week 645 starts with a continuation of the asymmetric - 50/+60 deg. rocking profile from the previous week. On day of year 282 (2020-10-08) at 00:45 there is a 10 minute freeze observation during which an updated asymmetric -/+ 50 deg. rocking profile is loaded. On day of year 284 (2020-10-10) at 19:23 there is another 10 minute freeze observation during which a symmetric +/- 50 deg. profile is loaded. This profile continues until the end of the week. Note that positive rock angles are south, and negative angles are north.

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Latest News

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Sep 18, 2020

Fermi LAT Resumes Normal Operations

The LAT instrument has resumed collection of science data following an outage on September 17 to recover from a reboot of one of the onboard processors. The LAT was not collecting science data for 11 hours between 9:28 UTC and 20:28 UTC.

Aug 25, 2020

NASA Missions Explore a 'TIE Fighter' Active Galaxy

Not so long ago, astronomers mapped a galaxy far, far away using radio waves and found it has a strikingly familiar shape. In the process, they discovered the object, called TXS 0128+554, experienced two powerful bouts of activity in the last century.
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Jun 23, 2020

Fermi Cycle-13 GI Selected Programs Announced

The stage-I selection process for the Fermi Cycle-13 Guest Investigator program has been completed. There were a total of 41 new programs selected for stage-I out of 109 proposals submitted. A list of the selected programs, including the PIs, titles and abstracts is available on the FSSC web site.

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