Fermi Summer School will be May 26 to June 5, 2026.
LAT data processing and deliveries have been fully restored following the successful migration of the Level 1 pipeline to the S3DF facility at SLAC. The backlog of data collected during the processing pause has been cleared, and normal ground operations have resumed. All LAT data and products are now up to date on the public server. Thank you for your patience during this transition.
LAT data processing has successfully restarted on the S3DF facility at SLAC. Data deliveries are resuming, and the full restoration of LAT data and public product updates is expected next week. Data collected by LAT since March 16 will appear in the public server gradually as they complete ground processing and transfer. We will provide an additional update when the backlog of collected data has cleared, and normal ground operations have been fully restored.
LAT data processing has been paused to complete final tasks for the migration of the Level 1 pipeline to the S3DF facility at SLAC. This is expected to take at least 2-3 days and may take longer if we encounter anything unexpected. The LAT continues to collect science data on orbit; those data will be available after the migration completes and the ground processing has time to catch up. We will provide updates on the progress and expectations for LAT data availability at https://fermi.gsfc.nasa.gov/.
Fermi Observations for MW 932
Mission Week 932 begins with a continuation of the symmetric +/-50 deg. profile from the previous week. Then, on DOY 99 (2026-4-9) at 00:20 UT a 10-minute freeze observation occurs during which a symmetric +/-50 deg. profile is loaded. Next, on DOY 99 (2026-4-9) at 16:10 UT a 10-minute freeze observation occurs during which an asymmetric -50/+60 deg. profile is loaded. This profile continues until the end of the mission week. The survey repeat period INCREASED from 5666s to 5667s. Note that positive rock angles are south, and negative rock angles are north.
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 Fermi data.
Guest Investigator Program - Details of the Cycle 19 Call for Proposals, deadline Jan 29 2026.
Targets of Opportunity (ToO) - How to apply for a ToO.
New Users - Overview of Fermi analysis basics.
Data & Products - Download Fermi data and access data products such as catalogs.
Analysis Tools - Tools from the FSSC and the user community.
Analysis Threads - Step-by-step guides to various types of analyses that you can do with Fermi data.
Multiwavelength Coordination and Existing Data - Links to related datasets and coordination resources.
The Observatory - Key information about Fermi and its capabilities required for analysis.
Research Highlights - Major Fermi research areas and links to publications and press releases.
Transient Science - Resources for transient and time domain science.
Fermi Users' Group - External advisory body that provides input and perspectives from relevant science communities and members to the Fermi Project.
Fermi Summer School - Annual summer school aimed at graduate students and post-doctoral researchers.
Fermi Meetings - Links to summer schools, symposia, and workshops.
News and Mailing List - Sign up for Fermi news and other lists
