VANGUARD 2, 11
Orbit data source: Space-Track
VANGUARD 2, 11 is a payload satellite owned by NASA BSC (US) in LEO that was launched on Tue, 17 Feb 1959 UTC via a VANGUARD launch vehicle from the Air Force Eastern Test Range (AFETR). 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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VANGUARD 2 details
| Identifier | |
| Orbit | LEO |
| Last TLE update | 10 hours ago |
| Origin | |
| Manufacturer | NRL |
| Mission status | Unknown |
| Mission | Civil Imaging |
| Bus & Motor | NRL 20", Unknown motor |
| Mass | 10 kg wet, 10 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Radar Cross Section | 0.39 m², Medium (>0.1 m² and < 1m²) |
Expand to show TLE details & history
TLE from 10 hours ago
0 VANGUARD 2
1 11U 59001A 24251.70754669 .00001949 00000-0 10203-2 0 9996
2 11 32.8745 12.8507 1454511 336.3758 17.6082 11.88695811800079Epoch: 2024-09-07T16:58Z
Definitive object data (Epoch: 2024-09-07T16:58:52.034Z)
| Latitude | 0.00001° |
| Longitude | 130.87205° |
| Altitude | 626.295 km |
| Speed | 8.044 km/s |
| True Right ascension | 00h 51m 24s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in full shadow at TLE epoch |
Predictive object data (real-time)
| Latitude | 26.69737° |
| Longitude | 179.9782° |
| Altitude | 1,303.202 km |
| Speed | 7.396 km/s |
| Apparent Right ascension | 05h 30m 37s |
| Apparent Declination | -3° 24' 51" |
| Sunlit | Object is in daylight |
Predictive observer data (real-time)
| Local Sidereal Time | 19:29:26 |
| Azimuth | 44.082° NE |
| Elevation | -44.689° |
| Doppler factor | 1 |
Orbital elements
| Apogee | 2,915.073 km |
| Perigee | 554.942 km |
| Semi-major axis | 8,113.144 km |
| Eccentricity | 0.1454511 |
| Inclination | 32.8745° |
| RAAN | 12.8507° |
| Arg. of periapsis | 336.3758° |
| True anomaly | 23.68451° |
| Mean anomaly | 17.6082° |
| Eccentric anomaly | 20.53095° |
| Mean motion | 2.97002 °/min |
| BSTAR | 0.0010203 |
| Period | 121.21 mins |
No data available
Other satellites on launch #1 in the year 1959 (1959-02-17 UTC)
| VANGUARD 2, 11 |
| VANGUARD R/B, 12 |
| VANGUARD DEB, 5807 (Decayed) |
| VANGUARD DEB, 14934 (Decayed) |
VANGUARD 2 Visibility forecast
Observer location: 39.9160978°, -105.1181434
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. |
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