SYNCOM 3, 858
Orbit data source: Space-Track
SYNCOM 3, 858 is a payload satellite owned by GSFC (US) in GEO that was launched on Wed, 19 Aug 1964 UTC via a THOR DELTA D 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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858 intel report (Beta)
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SYNCOM 3 details
| Identifier | |
| Orbit | GEO |
| Last TLE update | 5 days ago |
| Origin | |
| Manufacturer | Hughes |
| Mission | Non-operational Civil Communications |
| Bus & Motor | HS-301, SR-12-1 |
| Mass | 66 kg wet, 33 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Shape & HBR | Cyl, 0.71 m |
| Radar Cross Section | 0.415 m², Large (>1 m²) |
Expand to show TLE details & history
TLE from 5 days ago
0 SYNCOM 3
1 00858U 64047A 24291.89465608 -.00000234 00000-0 00000-0 0 9996
2 00858 5.4734 70.4501 0004688 142.5368 54.2826 1.00386008 47372Epoch: 2024-10-17T21:28Z
Definitive object data (Epoch: 2024-10-17T21:28:18.285Z)
| Latitude | -1.57395° |
| Longitude | -81.73444° |
| Altitude | 35,742.748 km |
| Speed | 3.077 km/s |
| True Right ascension | 17h 48m 51s |
| True Declination | -1° 34' 20" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | 1.70169° |
| Longitude | -116.63377° |
| Altitude | 35,735.532 km |
| Speed | 3.077 km/s |
| Apparent Right ascension | 15h 42m 04s |
| Apparent Declination | -4° 16' 35" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 13:47:12 |
| Azimuth | 142.227° SSE |
| Elevation | 38.529° |
| Doppler factor | 1 |
Orbital elements
| Apogee | 35,775.414 km |
| Perigee | 35,735.909 km |
| Semi-major axis | 42,133.798 km |
| Eccentricity | 0.0004688 |
| Inclination | 5.4734° |
| RAAN | 70.4501° |
| Arg. of periapsis | 142.5368° |
| True anomaly | 54.32623° |
| Mean anomaly | 54.2826° |
| Eccentric anomaly | 54.30441° |
| Mean motion | 0.25096 °/min |
| BSTAR | Unknown |
| Period | 1434.52 mins |
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Other satellites on launch #47 in the year 1964 (1964-08-19 UTC)
| SYNCOM 3, 858 |
| DELTA 1 R/B, 862 |
SYNCOM 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2024-10-22 18:40:56.056Z | 142.24° SSE | 2024-10-23 13:42:56.056Z | 139.335° SSE | 33.828° | 2024-10-23 18:40:56.056Z | 141.82° SSE |