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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11 intel report (Beta)
VANGUARD 2 details
| Identifier | |
| Orbit | LEO |
| Last TLE update | 19 hours ago |
| Origin | |
| Manufacturer | NRL |
| 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 |
| Shape & HBR | Sphere, 0.51 m |
| Radar Cross Section | 0.204 m², Medium (>0.1 m² and < 1m²) |
Expand to show TLE details & history
TLE from 19 hours ago
0 VANGUARD 2
1 00011U 59001A 25017.92624285 .00001477 00000-0 78138-3 0 9999
2 00011 32.8651 233.7257 1451686 6.8426 354.9878 11.89084865474071Epoch: 2025-01-17T22:13Z
Definitive object data (Epoch: 2025-01-17T22:13:47.382Z)
| Latitude | -0° |
| Longitude | 142.6954° |
| Altitude | 558.252 km |
| Speed | 8.112 km/s |
| True Right ascension | 15h 34m 54s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | 31.9879° |
| Longitude | -114.40209° |
| Altitude | 1,602.559 km |
| Speed | 7.128 km/s |
| Apparent Right ascension | 01h 14m 03s |
| Apparent Declination | 1° 08' 12" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 17:43:42 |
| Azimuth | 74.175° E |
| Elevation | -16.37° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 2,910.757 km |
| Perigee altitude | 555.723 km |
| Semi-major axis | 8,111.377 km |
| Eccentricity | 0.1451686 |
| Inclination | 32.8651° |
| RAAN | 233.7257° |
| Arg. of periapsis | 6.8426° |
| True anomaly | 353.21757° |
| Mean anomaly | 354.9878° |
| Eccentric anomaly | 354.13836° |
| Mean motion | 2.97099 °/min |
| BSTAR | 0.00078138 |
| Orbital period | 121.17 mins |
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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 DEB, 61446 |
VANGUARD 2 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2025-01-18 18:37:47.242Z | 218.265° SW | 2025-01-18 18:41:47.242Z | 158.973° S | 30.494° | 2025-01-18 18:48:47.242Z | 96.935° ESE |
| 16 mins | 2025-01-18 20:44:47.242Z | 248.781° W | 2025-01-18 20:49:47.242Z | 183.266° SSW | 39.109° | 2025-01-18 21:00:47.242Z | 106.825° ESE |
| 20 mins | 2025-01-18 22:51:47.242Z | 260.279° W | 2025-01-18 22:59:47.242Z | 190.546° SSW | 34.908° | 2025-01-18 23:11:47.242Z | 132.4° SE |
| 19 mins | 2025-01-19 01:01:47.242Z | 251.503° W | 2025-01-19 01:09:47.242Z | 207.945° SW | 22.632° | 2025-01-19 01:20:47.242Z | 165.202° S |
Authenticating...
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