How many satellites are currently orbiting Earth?

There are currently 31,358 catalogued objects tracked in Earth orbit by Orbital Radar, including 18,695 catalogued payloads, 2,107 rocket bodies, and 9,894 pieces of debris.

What is a NORAD Catalog Number?

A NORAD Catalog Number is a unique identifier assigned to every artificial object in Earth orbit by the United States Space Command. Numbers are assigned sequentially as objects are catalogued.

What is the difference between LEO, MEO, GEO, and HEO orbits?

LEO (Low Earth Orbit) is 160–2,000 km altitude. MEO (Medium Earth Orbit) is 2,000–35,786 km. GEO (Geostationary Earth Orbit) is exactly 35,786 km. HEO (Highly Elliptical Orbit) has extreme altitude variation.

How much space debris is in orbit?

There are 9,894 catalogued pieces of space debris being tracked. This includes collision fragments, defunct satellites, and spent rocket stages.

Which country has the most satellites?

Orbital Radar tracks satellites from 103 countries. The United States operates the most, followed by China and Russia.

📂 Complete Catalogue Live · updates every few minutes

O3b mPOWER Satellites

28 O3b mPOWER satellites

Live orbital data for every satellite, rocket body and debris fragment — searchable, filterable and comparable. Updated continuously from Orbital Radar's live orbital catalogue.

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Total Tracked

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Payloads

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Debris

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Countries

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Launched 2026

Orbital Radar tracks 28 O3b mPOWER satellites in orbit, part of 31,358 catalogued objects in Earth orbit. Every entry below links to a live profile with current position and orbital parameters.

What do the status labels mean?

Active— payload with a current TLE (updated within 14 days) that is within typical operational life.
Inactive— still tracked, but the elements are ageing or the object is decades old; most likely non-operational.
Tracked— recently tracked rocket body or debris object.

Status is an editorial estimate inferred from each object's latest two-line element set (TLE) and launch epoch — not an official operator declaration. Objects that re-enter are removed from the live catalogue by the tracking network.

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ISS TRACKER

Live position, pass predictions, sky arcs & crew manifest

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Browse All Indexed Satellites (28)