VELA 2, 674
Orbit data source: Space-Track
VELA 2, 674 is a payload satellite owned by USAF SSD (US) in HEO that was launched on Thu, 17 Oct 1963 UTC via an ATLAS AGENA D launch vehicle from the Air Force Eastern Test Range (AFETR). Payload-class satellites include a variety of spacecraft 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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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
TRW
Mission
Defense Early Warn
Bus & Motor
VELA, BE3A
Mass
~217 kg wet, 115 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Poly, 0.7 m
Radar Cross Section
2.240 m², Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 1 week ago
TLE from 1 week ago
0 VELA 2
1 674U 63039A 25233.70687258 -.00000484 00000-0 00000+0 0 9992
2 674 46.9199 107.0652 5061239 83.4591 359.8149 0.22192263 50173Epoch: 2025-08-21T16:57Z
TLE epoch observation values (Epoch: 2025-08-21T16:57:53.79Z)
Latitude
46.68798°
Longitude
-36.62169°
Altitude
50,222.826 km
Speed
3.26 km/s
True Right ascension
12h 32m 28s
True Declination
46° 39' 59"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
22:09:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
167,186.88 km
Perigee altitude
50,535.915 km
Semi-major axis
115,239.535 km
Eccentricity
0.50612
Inclination
46.9199°
RAAN
107.0652°
Arg. of periapsis
83.4591°
True anomaly
359.34551°
Mean anomaly
359.8149°
Eccentric anomaly
359.62521°
Mean motion
0.05548 °/min
Orbital period
6,488.76 mins
BSTAR
0
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Other satellites on launch #39 in the year 1963 (1963-10-17 UTC)
VELA 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. |
|---|---|---|---|---|---|---|---|
| 107 mins | 2025-08-31 06:30:58.422Z | 228.937° WSW | 2025-08-31 06:30:58.422Z | 228.937° WSW | 25.338° | 2025-08-31 08:17:58.422Z | 243.795° WSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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