303 Overwatch

Reference · Satellite directory

Satellite directory

Every payload, rocket body and piece of debris the public space catalogue still lists in orbit, each with a page of its own and a link to its source record. Flights that have ended are in the re-entry register.

Published by 303 Overwatch A.S.B.L from the CelesTrak catalogue, so that an operator can check what the public record holds on its own fleet.

Objects in orbit
35,514106 owners
Payloads
20,526
Operational payloads
17,042status reported as operational
Rocket bodies
2,438
Debris
12,542

Every figure on this page is derived from the CelesTrak satellite catalogue (SATCAT) as built on . US Space Force data published on Space-Track.org.

Search the objects
Start with your countryShows the objects that country owns, from the public catalogue.
Or with the largest owners

Loading the objects

The catalogue in two pictures

Objects in orbit by orbit class
  1. LEO29,382
  2. MEO353
  3. GEO1,251
  4. HEO2,772
  5. Other1,106
  6. Beyond Earth304
  7. Docked14
  8. Unknown332

As of 2026-11-10. Classes per CelesTrak, defined under Where this comes from, below.

Objects in orbit by launch decade
  1. 1950s11
  2. 1960s1,561
  3. 1970s2,842
  4. 1980s2,861
  5. 1990s5,564
  6. 2000s2,004
  7. 2010s2,874
  8. 2020s17,797

Objects still catalogued as in orbit, by the decade they were launched. As of 2026-11-10.

Lowest-flying objects at build

The lowest-flying objects are those with the lowest perigee in the catalogue at the time of the build. That is a reading of the catalogue, not a re-entry prediction.

  • BLOCK DM-SL R/Bperigee 119 km, apogee 4,282 km
    Rocket body, Sea Launch, NORAD 32730
  • ARIANE 5 R/Bperigee 120 km, apogee 11,508 km
    Rocket body, France, NORAD 37607
  • COSMOS 1261 DEBperigee 121 km, apogee 23,158 km
    Debris, Commonwealth of Independent States (former USSR), NORAD 12892
  • GSLV R/Bperigee 127 km, apogee 29,584 km
    Rocket body, India, NORAD 100608
  • TITAN 34B R/Bperigee 135 km, apogee 29,534 km
    Rocket body, United States, NORAD 8872
  • CZ-3B R/Bperigee 139 km, apogee 15,114 km
    Rocket body, People's Republic of China, NORAD 62375
  • SL-6 R/B(2)perigee 140 km, apogee 35,638 km
    Rocket body, Commonwealth of Independent States (former USSR), NORAD 26045
  • CZ-3B R/Bperigee 143 km, apogee 9,434 km
    Rocket body, People's Republic of China, NORAD 56565
  • CZ-3B R/Bperigee 144 km, apogee 25,425 km
    Rocket body, People's Republic of China, NORAD 66991
  • STARLINK-5701perigee 145 km, apogee 152 km
    Payload, United States, NORAD 55487
  • CZ-3B R/Bperigee 147 km, apogee 10,771 km
    Rocket body, People's Republic of China, NORAD 44077
  • CZ-3B R/Bperigee 147 km, apogee 17,272 km
    Rocket body, People's Republic of China, NORAD 63525

Where this comes from

The rows are the CelesTrak satellite catalogue (SATCAT), file satcat.csv, maintained by CelesTrak. Upstream: US Space Force data published on Space-Track.org. Owner and launch site names are CelesTrak's own code tables. Space-Track.org's user agreement records US Space Command's blanket approval to redistribute basic space situational awareness data on condition of appropriate citation, which every page here gives; CelesTrak's usage policy states no redistribution terms. The source and build date of every reference page are listed on the reference page.

Orbit class

CelesTrak classes, computed at build from period, apogee and perigee. LEO: period under 128 minutes and eccentricity under 0.25. MEO: period 600 to 800 minutes and eccentricity under 0.25. GEO: 0.99 to 1.01 revolutions a day and eccentricity under 0.01. HEO: eccentricity over 0.25. Any other Earth orbit is Other. Objects orbiting another body are Beyond Earth; objects docked to another are Docked.

Status

Status is the catalogue's operational status code as published, with its CelesTrak meaning: operational, non-operational, partially operational, backup or standby, spare, extended mission, or unknown where no code is given. It is a catalogue field, not a statement by the operator.

Owner names

Four owner codes in the catalogue (SVK, JOR, KWT, UGA) are not on CelesTrak's sources page; their names are the ISO 3166 country names.

What this is not

This directory carries no positions and makes no predictions. It is for reference, not for operational decisions such as collision avoidance, which need a conjunction assessment service and the operator's own ephemerides.

To cite this directory:303 Overwatch A.S.B.L, directory, https://www.303overwatch.org/satellites/, data as of 2026-11-10, derived from the CelesTrak satellite catalogue.

If one of these objects is yours

When it is flown from the EU, the operator of its ground segment can be of a type NIS2 lists in Annex I: point 11, or point 8 for a provider of public electronic communications networks; if that operator is in scope, that brings the duty to exercise your security measures and assess their effectiveness. 303 Overwatch runs a no-fee working session that helps your team build that exercise programme around the systems that fly it, and accredited SCOR training for the people who run them.

Talk to the Center of Excellence