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 585

Mission week 585 starts with a continuation of the symmetric +/- 50 degree from the previous week. At 00:34 on day of year 227 (August 15) there is a 10 minute freeze observation during which an updated symmetric rocking 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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Aug 15, 2019

Moon Glows Brighter Than Sun in Images From NASA's Fermi

If our eyes could see gamma rays, the Moon would appear brighter than the Sun! That's how NASA's Fermi Gamma-ray Space Telescope has seen our neighbor in space for the past decade. These gamma-ray observations are a reminder that astronauts on the Moon will require protection from the same cosmic rays that produce this high-energy gamma radiation.
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Aug 5, 2019

Fermi Returns to Normal Operations

Friday night 8/2/19: The Fermi flight operations has returned the observatory to normal sky-survey mode and science operations have been resumed. The situation will continue to be carefully monitored.

Aug 2, 2019

Fermi Spacecraft Anomaly

At 14:33:54 UTC on August 1, Fermi went into Sun point mode following an anomaly. The observatory is safe and the instruments are powered on but are not taking any science data at this time. The investigation into the cause of the anomaly is ongoing.

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