SSTL-100 Satellite Bus
Data current as of 2026-07-20.
The SSTL-100 bus accounts for 15 cataloged objects, of which 15 are in orbit and 11 are active. Most are built by SSTLA. The largest operator on this bus is NSPO. The first launched in 2002, the most recent in 2019.
15
In orbit
11
Active
15
Total launched
0
Reentered
SSTL-100 launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged SSTL-100 satellites.
| Manufacturer | SSTLA |
|---|---|
| Purpose | Earth observation |
| Launch mass | 278 kg |
| Dry mass | 278 kg |
| Length | 0.6 m |
| Diameter | 1 m |
| Span | 3 m |
| Shape | Box+ 1 pan |
| Power | Solar cells, batteries |
| Propulsion | Hydrazine monopropellant system |
| Design life | 5 years |
| Equipment | TGRS |
| Typical orbit | 96 min period, 98° inclination |
Top operators
NSPO 6 ASAL 2 NSRDA 2 BNSC 1 DEIMOS 1 EXEA 1 SSTLA/DMC 1 TUBTK 1
Top countries
TW 6 DZ 2 NG 2 UK 2 CA 1 E 1 TR 1
SSTL-100 satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| FORMOSAT 7-5 COSMIC 2-5 | 44358 | 2019-036V | NSPO | Jun 25, 2019 | 96 min, 24.0° | Active | ◉ |
| FORMOSAT 7-6 COSMIC 2-6 | 44353 | 2019-036Q | NSPO | Jun 25, 2019 | 96 min, 24.0° | Active | ◉ |
| FORMOSAT 7-2 COSMIC 2-2 | 44351 | 2019-036N | NSPO | Jun 25, 2019 | 96 min, 24.0° | Active | ◉ |
| FORMOSAT 7-4 COSMIC 2-4 | 44350 | 2019-036M | NSPO | Jun 25, 2019 | 96 min, 24.0° | Active | ◉ |
| FORMOSAT 7-1 COSMIC 2-1 | 44349 | 2019-036L | NSPO | Jun 25, 2019 | 96 min, 24.0° | Active | ◉ |
| FORMOSAT 7-3 COSMIC 2-3 | 44343 | 2019-036E | NSPO | Jun 25, 2019 | 95 min, 24.0° | Active | ◉ |
| ALSAT 1B ALSAT-1B | 41785 | 2016-059C | ASAL | Sep 26, 2016 | 98 min, 97.8° | Active | ◉ |
| EXACTVIEW-1 (ADS-1B) exactView-1 | 38709 | 2012-039C | EXEA | Jul 22, 2012 | 101 min, 99.0° | Active | ◉ |
| NIGERIASAT-X NigeriaSat-X | 37790 | 2011-044C | NSRDA | Aug 17, 2011 | 99 min, 97.9° | Active | ◉ |
| UK-DMC 2 UK-DMC-2 | 35683 | 2009-041C | SSTLA/DMC | Jul 29, 2009 | 98 min, 97.9° | Active | ◉ |
| DEIMOS-1 Deimos-1 | 35681 | 2009-041A | DEIMOS | Jul 29, 2009 | 98 min, 97.7° | Active | ◉ |
| BILSAT 1 BILSAT-1 | 27943 | 2003-042E | TUBTK | Sep 27, 2003 | 98 min, 98.4° | Inactive | ◉ |
| UK-DMC UK-DMC | 27942 | 2003-042D | BNSC | Sep 27, 2003 | 97 min, 98.1° | Inactive | ◉ |
| NIGERIASAT-1 NigeriaSat-1 | 27941 | 2003-042C | NSRDA | Sep 27, 2003 | 97 min, 98.0° | Inactive | ◉ |
| ALSAT 1 AlSat-1 | 27559 | 2002-054A | ASAL | Nov 28, 2002 | 97 min, 98.2° | Inactive | ◉ |
Frequently asked questions
How many SSTL-100 satellites are there?
The catalog lists 15 objects built on the SSTL-100 bus. 15 are in orbit and 0 have reentered.
How many SSTL-100 satellites are in orbit?
15 SSTL-100 objects are currently in orbit, of which 11 carry an active status.
Who builds the SSTL-100 bus?
The SSTL-100 bus is most commonly built by SSTLA.
When did the first SSTL-100 satellite launch?
The first cataloged SSTL-100 satellite launched in 2002, and the most recent in 2019.