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 | 6 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 6 hours ago
0 VANGUARD 3
1 20U 59007A 25047.76800452 .00001148 00000-0 45702-3 0 9998
2 20 33.3448 212.6156 1644659 334.1579 18.5097 11.60427750428208
Epoch: 2025-02-16T18:25Z
Definitive object data (Epoch: 2025-02-16T18:25:55.59Z)
Latitude | 0.00001° |
Longitude | 149.13767° |
Altitude | 605.958 km |
Speed | 8.112 km/s |
True Right ascension | 14h 10m 27s |
True Declination | 0° 00' 00" |
Sunlit | Object was in full shadow at TLE epoch |
Visualization TLE readout
Latitude | 21.37762° |
Longitude | -175.53067° |
Altitude | 1,131.986 km |
Speed | 7.605 km/s |
Apparent Right ascension | 16h 09m 25s |
Apparent Declination | -6° 30' 31" |
Sunlit | Object is in daylight |
Visualization observer readout
Local Sidereal Time | 03:37:26 |
Azimuth | 345.753° N |
Elevation | -55.829° |
Doppler factor | 1 |
Orbital elements
Apogee altitude | 3,221.997 km |
Perigee altitude | 510.205 km |
Semi-major axis | 8,244.238 km |
Eccentricity | 0.1644659 |
Inclination | 33.3448° |
RAAN | 212.6156° |
Arg. of periapsis | 334.1579° |
True anomaly | 25.90279° |
Mean anomaly | 18.5097° |
Eccentric anomaly | 22.04683° |
Mean motion | 2.89946 °/min |
BSTAR | 0.00045702 |
Orbital period | 124.16 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. |
---|---|---|---|---|---|---|---|
9 mins | 2025-02-17 13:11:52.642Z | 171.877° S | 2025-02-17 13:15:52.642Z | 132.749° SE | 18.15° | 2025-02-17 13:20:52.642Z | 100.003° ESE |
19 mins | 2025-02-17 15:19:52.642Z | 228.043° WSW | 2025-02-17 15:25:52.642Z | 161.379° S | 38.28° | 2025-02-17 15:38:52.642Z | 90.359° ESE |
26 mins | 2025-02-17 17:29:52.642Z | 258.259° W | 2025-02-17 17:38:52.642Z | 183.841° SSW | 42.27° | 2025-02-17 17:55:52.642Z | 106.397° ESE |
29 mins | 2025-02-17 19:41:52.642Z | 267.508° W | 2025-02-17 19:53:52.642Z | 196.958° SSW | 38.048° | 2025-02-17 20:10:52.642Z | 133.888° SE |
26 mins | 2025-02-17 21:55:52.642Z | 263.6° W | 2025-02-17 22:07:52.642Z | 217.298° SW | 25° | 2025-02-17 22:21:52.642Z | 169.934° S |
Authenticating...
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