NROL-21 - Norad ID: 29651
| Spacetrack Directory Name | USA 193 |
| Alternative name | NROL-21 |
| Group | NROL StarShield |
| Orbit launches |
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| Deorbitation date |
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| Days in orbit | 442 |
| Country/organisation of origin | USA (US) |
| Starting point | AFWTR (Vandenberg Air Force Base, USA) |
USA 193, 29651 was a payload satellite owned by NRO (US) that was launched on Thu, 14 Dec 2006 UTC via a DELTA 7920-10C launch vehicle from the Air Force Western Test Range (AFWTR). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.