VANGUARD 3, 00020
Orbit data source: Space-Track
VANGUARD 3, 00020 is a payload satellite owned by GSFC (US) in LEO that was launched on Fri, 18 Sep 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 3 details
| NORAD ID | 00020 |
| COSPAR ID | |
| Orbit | LEO |
| Last TLE update | 17 hours ago |
| Origin | |
| Manufacturer | NRL |
| Bus | NRL 20" |
| Motor | Unknown |
| Mass | 47 kg wet, 23 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Radar Cross Section | 0.66 m², Medium (>0.1 m² and < 1m²) |
Predictive object data (real-time)
| Latitude | 33.12451° |
| Longitude | 85.27379° |
| Altitude | 2,361.414 km |
| Speed | 6.554 km/s |
| Apparent Right ascension | 17h 45m 29s |
| Apparent Declination | 5° 41' 14" |
| Sunlit | Object is in daylight |
Predictive observer data (real-time)
| Local Sidereal Time | 00:46:18 |
| Azimuth | 284.225° WNW |
| Elevation | -7.847° |
| Doppler factor | 1 |
Orbital elements
| Apogee | 3,233.299 km |
| Perigee | 510.597 km |
| Semi-major axis | 8,250.085 km |
| Eccentricity | 0.1650105 |
| Inclination | 33.3473° |
| RAAN | 228.2777° |
| Arg. of periapsis | 318.741° |
| True anomaly | 41.31995° |
| Mean anomaly | 29.9309° |
| Eccentric anomaly | 35.40885° |
| Mean motion | 2.89638 °/min |
| BSTAR | 0.0013718 |
| Period | 124.29 mins |
Definitive object data (Epoch: 2024-07-26T18:25:26.028Z)
| Latitude | 0.00002° |
| Longitude | 6.981° |
| Altitude | 758.94 km |
| Speed | 7.962 km/s |
| True Right ascension | 15h 13m 06s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in daylight at TLE epoch |
TLE from 17 hours ago
0 VANGUARD 3
1 00020U 59007A 24208.76766237 .00003410 00000-0 13718-2 0 9993
2 00020 33.3473 228.2777 1650105 318.7410 29.9309 11.59193479404362Epoch: 2024-07-26T18:25Z
No data available
Other satellites on launch #7 in the year 1959 (1959-09-18 UTC)
| VANGUARD 3, 20 |
| VANGUARD 3 DEB, 29005 (Decayed) |
| VANGUARD 3 DEB, 31405 (Decayed) |
VANGUARD 3 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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