Data

+ LAT Data
+ LAT Catalog
+ LAT Data Queries
+ LAT Query Results
+ LAT Weekly Files
+ LAT Light Curve Repository
+ GBM Data

LAT Data Products

The following lists the science data products created by the LISOC (the LAT Instrument and Science Operation Center) and provided to the FSSC.

LAT Photon and Extended Data

LAT Data Server
LAT Low-Energy (LLE) Data (Browse table)
Products available on the FTP Site (current processing version of the data).
- Weekly Photon Files
- Weekly Spacecraft Files
- Mission Long Spacecraft File
- Weekly 1-second Spacecraft Files
- Filtered Weekly Photon Files with Diffuse Response Columns
Previous processing versions available on the FTP site

High-level Data Products

Catalogs and associated products
- LAT Source Catalog
  - LAT 14-year Source Catalog (4FGL-DR4)
  - LAT 12-year Source Catalog (4FGL-DR3)
  - LAT 10-year Source Catalog (4FGL-DR2)
  - LAT 8-year Source Catalog (4FGL)
  - Preliminary LAT 8-year Source List (FL8Y)
  - LAT 4-year Source Catalog (3FGL)
  - LAT 2-year Source Catalog (2FGL)
  - LAT 1-year Source Catalog (1FGL)
  - LAT 3-month Bright Source List (0FGL)
- Aperture Photometry Light Curves
- LAT High Energy Source Catalog
  - LAT Third High Energy Source Catalog (3FHL)
  - LAT Second High-Energy Source Catalog (2FHL)
  - LAT First High-Energy Source Catalog (1FHL)
- LAT Third Catalog of Gamma-ray Pulsars (3PC)
- Light Curve Repository
- LAT Monitored Source List Light Curves
- LAT GRB Catalog
- Extended Sources in the Galactic Plane (FGES)
- Fermi All-sky Variability Analysis Catalog (FAVA)
- 1st Fermi-LAT SNR Catalog
- LAT Second Catalog of Gamma-ray Pulsars (2PC)
- Fourth LAT AGN Catalog (4LAC,4LAC-DR2,4LAC-DR3)
Other useful data products
- List of LAT GRBs announced via GCN notices (external)
- List of LAT Sources announced via ATels
- LAT List of Detected Gamma-Ray Pulsars (updated frequently)
- LAT Pulsar Ephemerides from Publications
- LAT Background Models
- List of time gaps in LAT data

Daily Data Products

The following data products are created daily by the LISOC and sent to the FSSC. The products are create after each downlink from the spacecraft (6-8 per day).

ID	Name	Description
LS-001	LAT Events	Large number of parameters describing a large subset of the events telemetered to the ground (many did not result from photons).
LS-002	LAT photons	Selected parameters from the subset of events identified as gamma-ray photons
LS-005	LAT Pointing and Livetime History	LAT orientation and mode at 30-second intervals; used to calculate exposures
LS-020	LAT Pointing and Livetime History	LAT orientation and mode at 1-second intervals; used to calculate exposures

Periodic Data Products

The following data products will be created periodically.

ID	Name	Description
LS-008	LAT Source Catalog	Table of detected gamma-ray sources with derived information
LS-010	Interstellar Emission Model	Model for diffuse gamma-ray emission from the Milky Way, input for high-level data analysis; will be refined using Fermi data. The Interstellar Emission Model is incorporated into the the Fermi Science Tools. However, investigators may occasionally need to obtain updates of this model from the FSSC web site.

National Aeronautics and Space Administration