USA 72, 21775
Orbit data source: Space-Track
USA 72, 21775 is an American payload satellite in HEO that was launched on Fri, 08 Nov 1991 UTC via a TITAN 403A 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.
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21775 intel report (Beta)
USA 72 details
| Identifier | |
| Orbit | HEO |
| Last TLE update | 1 day ago |
| Origin | |
| Manufacturer | NRL |
| Mission | Defense Sigint |
| Bus & Motor | NOSS B, Unknown motor |
| Mass | ~3,000 kg wet, ~3,000 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Shape & HBR | Cyl, 1 m |
| Radar Cross Section | 1.178 m² |
Expand to show TLE details & history
TLE from 1 day ago
0 USA 72
1 21775U 91076A 24360.44741771 -.00000023 00000-0 00000-0 0 9991
2 21775 63.3622 72.2062 3361181 272.3511 50.3500 5.53395765 12744Epoch: 2024-12-25T10:44Z
Definitive object data (Epoch: 2024-12-25T10:44:16.89Z)
| Latitude | -0° |
| Longitude | 176.70149° |
| Altitude | 5,443.356 km |
| Speed | 6.158 km/s |
| True Right ascension | 04h 48m 51s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in full shadow at TLE epoch |
Visualization TLE readout
| Latitude | 12.48673° |
| Longitude | -177.39161° |
| Altitude | 6,473.89 km |
| Speed | 5.702 km/s |
| Apparent Right ascension | 03h 57m 32s |
| Apparent Declination | -5° 04' 08" |
| Sunlit | Object is in full shadow |
Visualization observer readout
| Local Sidereal Time | 12:16:03 |
| Azimuth | 289.824° WNW |
| Elevation | -29.397° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 11,660.268 km |
| Perigee altitude | 2,584.672 km |
| Semi-major axis | 13,500.607 km |
| Eccentricity | 0.3361181 |
| Inclination | 63.3622° |
| RAAN | 72.2062° |
| Arg. of periapsis | 272.3511° |
| True anomaly | 87.72967° |
| Mean anomaly | 50.35° |
| Eccentric anomaly | 68.23532° |
| Mean motion | 1.38361 °/min |
| BSTAR | Unknown |
| Orbital period | 260.19 mins |
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Other satellites on launch #76 in the year 1991 (1991-11-08 UTC)
USA 72 Visibility forecast
Observer location: undefined°, undefined
Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 134 mins | 2024-12-26 13:37:28.261Z | 311.719° NW | 2024-12-26 15:08:28.261Z | 60.68° ENE | 44.613° | 2024-12-26 15:51:28.261Z | 145.991° SSE |
| 80 mins | 2024-12-26 18:43:28.261Z | 328.116° NNW | 2024-12-26 19:31:28.261Z | 290.076° WNW | 23.813° | 2024-12-26 20:03:28.261Z | 244.784° WSW |
| 48 mins | 2024-12-27 02:08:28.261Z | 82.564° E | 2024-12-27 02:29:28.261Z | 58.184° ENE | 14.54° | 2024-12-27 02:56:28.261Z | 35.912° NE |
| 122 mins | 2024-12-27 06:04:28.261Z | 197.664° SSW | 2024-12-27 06:40:28.261Z | 118.801° SE | 44.872° | 2024-12-27 08:06:28.261Z | 41.14° NE |
| 122 mins | 2024-12-27 10:52:28.261Z | 282.174° WNW | 2024-12-27 12:14:28.261Z | 17.054° NNE | 39.743° | 2024-12-27 12:54:28.261Z | 77.882° E |
Authenticating...
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