UCS Satellite Database

In-depth details on the 1,957 satellites currently orbiting Earth.
Satellite Database Downloads (includes launches through 11/30/18)
Already a database user? We'd love to hear your thoughts.

Assembled by experts at the Union of Concerned Scientists (UCS), the Satellite Database is a listing of the nearly 2000 operational satellites currently in orbit around Earth.

Our intent in producing the database is to create a research tool for specialists and non-specialists alike by collecting open-source information on operational satellites and presenting it in a format that can be easily manipulated for research and analysis.

It is available as both a downloadable Excel file and in a tab-delimited text format. A version is also provided in which the "Name" column contains only the official name of the satellite in the case of government and military satellites, and the most commonly used name in the case of commercial and civil satellites.

Who has satellites? Then and now

The database is updated three times a year (sign up for notifications in the sidebar to the right). The database contains 26 types of data for each satellite, including technical information about each satellite (mass, power, launch date, expected lifetime) and its orbit (apogee, perigee, inclination, and period), as well as information on what the satellite is used for, and who owns, operates, and built the satellite.

Satellite Quick Facts (includes launches through 11/30/18)
Total number of operating satellites: 1,957
United States: 849 Russia: 152 China: 284 Other: 672
LEO: 1,232 MEO: 126 Elliptical: 41 GEO: 558
Total number of US satellites: 849
Civil: 24 Commercial: 488 Government: 170 Military: 167

Users can answer questions such as:

  • How many satellites does a given country have in orbit, and what are they used for?
  • How many satellites are used for military purposes versus commercial purposes?
  • Which countries have earth-observing satellites?
  • When was the oldest working satellite launched?
  • At what altitudes do most satellites orbit?
  • What activities are most satellites involved with?

We welcome corrections, additions, and suggestions. These can be emailed to the database manager at [email protected]

Last revised date: January 9, 2019

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