VANGUARD 3, 20
Orbit data source: Space-Track
VANGUARD 3, 20 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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20 intel report (Beta)
VANGUARD 3 details
| Identifier | |
| Orbit | LEO |
| Last TLE update | 8 hours ago |
| Origin | |
| Manufacturer | NRL |
| Mission | Civil Science |
| Bus & Motor | NRL 20", Unknown motor |
| Mass | 47 kg wet, 23 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Shape & HBR | Sphere + Cyl, 2.5 m |
| Radar Cross Section | 1.104 m², Medium (>0.1 m² and < 1m²) |
Expand to show TLE details & history
TLE from 8 hours ago
0 VANGUARD 3
1 20U 59007A 25015.15179088 .00000972 00000-0 38791-3 0 9994
2 20 33.3449 329.7308 1644605 159.7865 207.6393 11.60342300424414Epoch: 2025-01-15T03:38Z
Definitive object data (Epoch: 2025-01-15T03:38:34.732Z)
| Latitude | 0.00003° |
| Longitude | 160.23788° |
| Altitude | 3,102.022 km |
| Speed | 5.98 km/s |
| True Right ascension | 21h 58m 55s |
| True Declination | 0° 00' 00" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | -5.1892° |
| Longitude | 151.11151° |
| Altitude | 3,195.116 km |
| Speed | 5.911 km/s |
| Apparent Right ascension | 22h 24m 28s |
| Apparent Declination | -20° 15' 10" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 12:29:59 |
| Azimuth | 63.039° ENE |
| Elevation | -56.769° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 3,222.423 km |
| Perigee altitude | 510.587 km |
| Semi-major axis | 8,244.642 km |
| Eccentricity | 0.1644605 |
| Inclination | 33.3449° |
| RAAN | 329.7308° |
| Arg. of periapsis | 159.7865° |
| True anomaly | 200.2695° |
| Mean anomaly | 207.6393° |
| Eccentric anomaly | 203.83193° |
| Mean motion | 2.89925 °/min |
| BSTAR | 0.00038791 |
| Orbital period | 124.17 mins |
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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: 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. |
|---|---|---|---|---|---|---|---|
| 22 mins | 2025-01-15 22:16:43.218Z | 199.875° SSW | 2025-01-15 22:29:43.218Z | 152.443° SSE | 25.223° | 2025-01-15 22:38:43.218Z | 103.116° ESE |
| 21 mins | 2025-01-16 00:30:43.218Z | 230.976° WSW | 2025-01-16 00:43:43.218Z | 161.649° S | 36.661° | 2025-01-16 00:51:43.218Z | 95.653° ESE |
| 16 mins | 2025-01-16 02:45:43.218Z | 256.018° W | 2025-01-16 02:55:43.218Z | 188.186° SSW | 39.586° | 2025-01-16 03:01:43.218Z | 108.784° ESE |
| 9 mins | 2025-01-16 05:01:43.218Z | 259.549° W | 2025-01-16 05:06:43.218Z | 208.783° SW | 27.665° | 2025-01-16 05:10:43.218Z | 147.247° SSE |
Authenticating...
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