O3b
Operated by SES
Data current as of 2026-07-20.
O3b is SES's medium Earth orbit broadband constellation, flying near 8,000 km to deliver lower-latency connectivity than traditional geostationary satellites. The newer O3b mPOWER spacecraft expand its capacity.
O3b accounts for 30 cataloged objects, of which 30 are in orbit and 24 are active. The first launched in 2013, the most recent in 2025. The busiest year was 2014, with 8 added. Most fly near a 0-degree inclination with an orbital period around 288 minutes.
O3b launched per year
Typical specifications
Most common values across cataloged O3b satellites.
| Manufacturer | THALR |
|---|---|
| Purpose | Communication |
| Launch mass | 700 kg |
| Dry mass | 500 kg |
| Length | 4 m |
| Diameter | 2 m |
| Span | 12 m |
| Shape | Box trap+2 pan |
| Power | 2 deployable solar arrays, batteries |
| Propulsion | LS-400 AOCS |
| Design life | 10 years |
| Equipment | 12 Ka-Band transponders |
| Typical orbit | 288 min period, 0° inclination |
Spacecraft buses
The platforms O3b satellites are built on.
Launched on
O3b satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Bus | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| O3B MPOWER F10 | 64867 | 2025-153B | 702X | Jul 22, 2025 | 288 min, 0.1° | Active | ◉ |
| O3B MPOWER F09 | 64866 | 2025-153A | 702X | Jul 22, 2025 | 288 min, 0.1° | Active | ◉ |
| O3B MPOWER F8 O3b mPOWER F8 | 62363 | 2024-244B | 702X | Dec 17, 2024 | 288 min, 0.0° | Active | ◉ |
| O3B MPOWER F7 O3b mPOWER F7 | 62362 | 2024-244A | 702X | Dec 17, 2024 | 288 min, 0.1° | Active | ◉ |
| O3B MPOWER F6 O3b mPOWER F6 | 58347 | 2023-175B | 702X | Nov 12, 2023 | 288 min, 0.1° | Inactive | ◉ |
| O3B MPOWER F5 O3b mPOWER F5 | 58346 | 2023-175A | 702X | Nov 12, 2023 | 288 min, 0.1° | Inactive | ◉ |
| O3B MPOWER F3 O3b mPOWER F3 | 56368 | 2023-059B | 702X | Apr 28, 2023 | 288 min, 0.1° | Inactive | ◉ |
| O3B MPOWER F4 O3b mPOWER F4 | 56367 | 2023-059A | 702X | Apr 28, 2023 | 288 min, 0.1° | Inactive | ◉ |
| O3B MPOWER F2 O3b mPOWER F2 | 54756 | 2022-174B | 702X | Dec 16, 2022 | 288 min, 0.0° | Inactive | ◉ |
| O3B MPOWER F1 O3b mPOWER F1 | 54755 | 2022-174A | 702X | Dec 16, 2022 | 288 min, 0.0° | Inactive | ◉ |
| O3B FM18 O3b FM18 | 44115 | 2019-020D | Prisma | Apr 4, 2019 | 288 min, 0.1° | Active | ◉ |
| O3B FM17 O3b FM17 | 44114 | 2019-020C | Prisma | Apr 4, 2019 | 288 min, 0.0° | Active | ◉ |
| O3B FM19 O3b FM19 | 44113 | 2019-020B | Prisma | Apr 4, 2019 | 288 min, 0.1° | Active | ◉ |
| O3B FM20 O3b FM20 | 44112 | 2019-020A | Prisma | Apr 4, 2019 | 288 min, 0.1° | Active | ◉ |
| O3B FM13 O3b FM13 | 43234 | 2018-024D | Prisma | Mar 9, 2018 | 288 min, 0.1° | Active | ◉ |
| O3B FM14 O3b FM14 | 43233 | 2018-024C | Prisma | Mar 9, 2018 | 288 min, 0.1° | Active | ◉ |
| O3B FM16 O3b FM16 | 43232 | 2018-024B | Prisma | Mar 9, 2018 | 288 min, 0.1° | Active | ◉ |
| O3B FM15 O3b FM15 | 43231 | 2018-024A | Prisma | Mar 9, 2018 | 288 min, 0.1° | Active | ◉ |
| O3B FM9 O3b FM9 | 40351 | 2014-083D | Prisma | Dec 18, 2014 | 288 min, 0.1° | Active | ◉ |
| O3B FM12 O3b FM12 | 40350 | 2014-083C | Prisma | Dec 18, 2014 | 288 min, 0.1° | Active | ◉ |
| O3B FM11 O3b FM11 | 40349 | 2014-083B | Prisma | Dec 18, 2014 | 288 min, 0.1° | Active | ◉ |
| O3B FM10 O3b FM10 | 40348 | 2014-083A | Prisma | Dec 18, 2014 | 288 min, 0.0° | Active | ◉ |
| O3B FM8 O3b FM8 | 40082 | 2014-038D | Prisma | Jul 10, 2014 | 288 min, 0.0° | Active | ◉ |
| O3B FM6 O3b FM6 | 40081 | 2014-038C | Prisma | Jul 10, 2014 | 288 min, 0.0° | Active | ◉ |
| O3B FM7 O3b FM7 | 40080 | 2014-038B | Prisma | Jul 10, 2014 | 288 min, 0.0° | Active | ◉ |
| O3B FM3 O3b FM3 | 40079 | 2014-038A | Prisma | Jul 10, 2014 | 288 min, 0.0° | Active | ◉ |
| O3B PFM O3b PFM | 39191 | 2013-031D | Prisma | Jun 25, 2013 | 288 min, 0.1° | Active | ◉ |
| O3B FM2 O3b FM2 | 39190 | 2013-031C | Prisma | Jun 25, 2013 | 288 min, 0.0° | Active | ◉ |
| O3B FM4 O3b FM4 | 39189 | 2013-031B | Prisma | Jun 25, 2013 | 288 min, 0.0° | Active | ◉ |
| O3B FM5 O3b FM5 | 39188 | 2013-031A | Prisma | Jun 25, 2013 | 288 min, 0.1° | Active | ◉ |
Frequently asked questions
How many O3b satellites are in orbit?
30 O3b objects are currently in orbit, out of 30 ever cataloged. 0 have reentered.
How many O3b satellites are active?
24 O3b satellites carry an active status in the catalog.
When did the first O3b satellite launch?
The first cataloged O3b object launched in 2013, and the most recent in 2025.
Who operates O3b?
O3b is operated by SES.
How can I track O3b satellites?
You can track the O3b fleet live in the KeepTrack 3D tracker, or open any individual satellite from the list on this page.