NRO Unk Small Satellite Bus
Data current as of 2026-07-20.
The NRO Unk Small bus accounts for 7 cataloged objects, of which 7 are in orbit and 7 are active. Most are built by NGISGA. The largest operator on this bus is National Reconnaissance Office. The first launched in 2020, the most recent in 2021.
7
In orbit
7
Active
7
Total launched
0
Reentered
NRO Unk Small launched per year
Still in orbit Click a year to list its satellites.
Typical specifications
Most common values across cataloged NRO Unk Small satellites.
| Manufacturer | NGISGA |
|---|---|
| Purpose | Technology ? |
| Launch mass | 150 kg |
| Dry mass | 150 kg |
| Length | 1 m |
| Diameter | 1 m |
| Span | 3 m |
| Shape | Box +2 pan |
| Propulsion | ? |
| Equipment | ? |
| Typical orbit | 96 min period, 55° inclination |
Top operators
Top countries
US 7
NRO Unk Small satellites
Track any of them live in KeepTrack.
| Name | NORAD | COSPAR | Owner | Launched | Orbit | Status | Track |
|---|---|---|---|---|---|---|---|
| USA 318 USA 318 | 48848 | 2021-052C | NROC | Jun 15, 2021 | 96 min, 55.0° | Active | ◉ |
| USA 317 USA 317 | 48847 | 2021-052B | NROC | Jun 15, 2021 | 95 min, 55.0° | Active | ◉ |
| USA 316 USA 316 | 48846 | 2021-052A | NROC | Jun 15, 2021 | 96 min, 55.0° | Active | ◉ |
| USA 303 USA 303 | 45725 | 2020-037C | NROC | Jun 13, 2020 | 94 min, 97.7° | Active | ◉ |
| USA 302 USA 302 | 45724 | 2020-037B | NROC | Jun 13, 2020 | 93 min, 97.7° | Active | ◉ |
| USA 301 USA 301 | 45723 | 2020-037A | NROC | Jun 13, 2020 | 96 min, 97.8° | Active | ◉ |
| USA 294 USA 294 | 45110 | 2020-007A | NROC | Jan 31, 2020 | 94 min, 70.0° | Active | ◉ |
Frequently asked questions
How many NRO Unk Small satellites are there?
The catalog lists 7 objects built on the NRO Unk Small bus. 7 are in orbit and 0 have reentered.
How many NRO Unk Small satellites are in orbit?
7 NRO Unk Small objects are currently in orbit, of which 7 carry an active status.
Who builds the NRO Unk Small bus?
The NRO Unk Small bus is most commonly built by NGISGA.
When did the first NRO Unk Small satellite launch?
The first cataloged NRO Unk Small satellite launched in 2020, and the most recent in 2021.