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 773

Mission Week 773 begins with a 10-minute freeze observation during which an asymmetric +50/-60 deg. profile is loaded. Then, on DOY 86 (2023-3-27) at 18:10 UT a 10-minute freeze observation occurs during which a symmetric +/-50 deg. profile is loaded. This profile continues until the end of the mission week. Note that positive rock angles are south, and negative rock angles are north.

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Latest News

Mar 28, 2023

NASA Missions Study What May Be a 1-In-10,000-Year Gamma-ray Burst

On Sunday, Oct. 9, 2022, a pulse of intense radiation swept through the solar system so exceptional that astronomers quickly dubbed it the BOAT - the brightest of all time.
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Mar 15, 2023

NASA's Fermi Captures Dynamic Gamma-Ray Sky in New Animation

Cosmic fireworks, invisible to our eyes, fill the night sky. We can get a glimpse of this elusive light show thanks to the Large Area Telescope (LAT) aboard NASA's Fermi Gamma-ray Space Telescope, which observes the sky in gamma rays, the highest-energy form of light.
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Feb 9, 2023

Reminder: Fermi Cycle-16 Proposals Are Due in One Week

We wish to remind you that Fermi Cycle-16 Guest Investigator proposals are due on February 16, 2023, just a week from now. Please refer to our proposers web page for an up-to-date description of the program, submission details and schedule.

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