OPS 3674 (VELA 4), 837
Orbit data source: Space-Track
OPS 3674 (VELA 4), 837 is a payload satellite owned by USAF SSD (US) in HEO that was launched on Fri, 17 Jul 1964 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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837 intel report (Beta)
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Edit Public Description
Expand to show TLE details & history
TLE from 2 weeks ago
0 OPS 3674 (VELA 4)
1 00837U 64040B 25104.64541123 .00000407 00000-0 00000-0 0 9991
2 00837 48.6998 131.9020 4420611 260.1689 0.5585 0.24000412 53699
Epoch: 2025-04-14T15:29Z
Definitive object data (Epoch: 2025-04-14T15:29:23.53Z)
Latitude
-47.67315°
Longitude
-47.76481°
Altitude
54,123.65 km
Speed
3.088 km/s
True Right ascension
01h 50m 33s
True Declination
-47° 39' 11"
Sunlit
Visualization TLE readout
Latitude
-4.35814°
Longitude
-120.15028°
Altitude
71,372.792 km
Speed
2.571 km/s
Apparent Right ascension
20h 52m 15s
Apparent Declination
-6° 59' 22"
Sunlit
Visualization observer readout
Local Sidereal Time
06:23:20
Azimuth
304.567° NW
Elevation
-43.175°
Doppler factor
1
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Other satellites on launch #40 in the year 1964 (1964-07-17 UTC)
OPS 3674 (VELA 4) 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. |
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147 mins | 2025-05-01 20:20:17.799Z | 102.525° ESE | 2025-05-01 22:47:17.799Z | 120.831° SE | 31.67° | 2025-05-01 22:47:17.799Z | 120.831° SE |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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