Microsat Satellite Bus
Data current as of 2026-07-20.
The Microsat bus accounts for 9 cataloged objects, of which 8 are in orbit and 0 are active. 1 have reentered. Most are built by AMNA. The largest operator on this bus is AMNA. The first launched in 1990, the most recent in 2019.
8
In orbit
0
Active
9
Total launched
1
Reentered
Microsat launched per year
Still in orbit Since reentered Click a year to list its satellites.
Typical specifications
Most common values across cataloged Microsat satellites.
| Manufacturer | AMNA |
|---|---|
| Purpose | Amateur radio communication |
| Launch mass | 12 kg |
| Dry mass | 12 kg |
| Length | 0.3 m |
| Diameter | 0.2 m |
| Span | 0.2 m |
| Shape | Box |
| Power | Solar cells, batteries |
| Propulsion | None |
| Design life | 6 years (design); 8 years (achieved) |
| Equipment | CCD Color Camera, Visual Light Spectrometer |
| Typical orbit | 100 min period, 99° inclination |
Top operators
AMNA 2 AMBR 1 AMIT 1 AMLU 1 DRDO 1 INFER 1 UNAM 1 WEBC 1
Top countries
US 4 AR 1 BR 1 I 1 IN 1 MX 1
Microsat satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| MICROSAT-R Microsat-R | 43947 | 2019-006A | DRDO | Jan 24, 2019 | 88 min, 96.6° | Reentered | ◉ |
| ECHO (AO-51) AMSAT-OSCAR-51 | 28375 | 2004-025K | AMNA | Jun 29, 2004 | 100 min, 98.7° | Inactive | ◉ |
| UNAMSAT-2 (MO-30) MEXICO-OSCAR-30 | 24305 | 1996-052B | UNAM | Sep 5, 1996 | 105 min, 82.9° | Inactive | ◉ |
| HEALTHSAT 1 ITAMSat-OSCAR-26 | 22827 | 1993-061E | AMIT | Sep 26, 1993 | 101 min, 98.6° | Inactive | ◉ |
| EYESAT A (AO-27) AMRAD-OSCAR-27 | 22825 | 1993-061C | INFER | Sep 26, 1993 | 101 min, 98.7° | Inactive | ◉ |
| LUSAT (LO-19) LUSAT-OSCAR-19 | 20442 | 1990-005G | AMLU | Jan 22, 1990 | 100 min, 98.9° | Inactive | ◉ |
| WEBERSAT (WO-18) WEBERSAT-OSCAR-18 | 20441 | 1990-005F | WEBC | Jan 22, 1990 | 100 min, 98.9° | Inactive | ◉ |
| DOVE (DO-17) DOVE-OSCAR-17 | 20440 | 1990-005E | AMBR | Jan 22, 1990 | 100 min, 98.9° | Inactive | ◉ |
| PACSAT (AO-16) AMSAT-OSCAR-16 | 20439 | 1990-005D | AMNA | Jan 22, 1990 | 100 min, 98.9° | Inactive | ◉ |
Frequently asked questions
How many Microsat satellites are there?
The catalog lists 9 objects built on the Microsat bus. 8 are in orbit and 1 have reentered.
How many Microsat satellites are in orbit?
8 Microsat objects are currently in orbit, of which 0 carry an active status.
Who builds the Microsat bus?
The Microsat bus is most commonly built by AMNA.
When did the first Microsat satellite launch?
The first cataloged Microsat satellite launched in 1990, and the most recent in 2019.