ESSA 4 (TOS-B), 2657
Orbit data source: Space-Track
ESSA 4 (TOS-B), 2657 is a payload satellite owned by ESSA (US) in LEO that was launched on Thu, 26 Jan 1967 UTC via a THOR DELTA E launch vehicle from the Air Force Western Test Range (AFWTR). 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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ESSA 4 (TOS-B) details
| Identifier | |
| Orbit | LEO |
| Last TLE update | 12 hours ago |
| Origin | |
| Manufacturer | RCA/East Windsor |
| Mission | Non-operational Civil Weather |
| Bus & Motor | TIROS I, Unknown motor |
| Mass | 132 kg wet, 132 kg dry |
| Launch date (UTC) | |
| Launch vehicle | |
| Launch site | |
| Object type | Payload Rocket body Debris |
| Shape & HBR | Cyl, 1.1 m |
| Radar Cross Section | 0.994 m², Medium (>0.1 m² and < 1m²) |
Expand to show TLE details & history
TLE from 12 hours ago
0 ESSA 4 (TOS-B)
1 02657U 67006A 24284.46237049 -.00000008 00000-0 20215-3 0 9996
2 02657 102.0600 81.9774 0073194 43.9164 24.5512 12.69875227674519Epoch: 2024-10-10T11:05Z
Definitive object data (Epoch: 2024-10-10T11:05:48.81Z)
| Latitude | 65.84919° |
| Longitude | -132.32415° |
| Altitude | 1,342.042 km |
| Speed | 7.217 km/s |
| True Right ascension | 03h 34m 42s |
| True Declination | 65° 43' 49" |
| Sunlit | Object was in daylight at TLE epoch |
Predictive object data (real-time)
| Latitude | -20.21519° |
| Longitude | 72.01225° |
| Altitude | 1,442.257 km |
| Speed | 7.116 km/s |
| Apparent Right ascension | 16h 41m 03s |
| Apparent Declination | -69° 52' 44" |
| Sunlit | Object is in daylight |
Predictive observer data (real-time)
| Local Sidereal Time | 17:27:40 |
| Azimuth | 184.245° SSW |
| Elevation | -20.127° |
| Doppler factor | 1 |
Orbital elements
| Apogee | 1,436.772 km |
| Perigee | 1,323.203 km |
| Semi-major axis | 7,758.124 km |
| Eccentricity | 0.0073194 |
| Inclination | 102.06° |
| RAAN | 81.9774° |
| Arg. of periapsis | 43.9164° |
| True anomaly | 24.90262° |
| Mean anomaly | 24.5512° |
| Eccentric anomaly | 24.72662° |
| Mean motion | 3.1762 °/min |
| BSTAR | 0.00020215 |
| Period | 113.34 mins |
No data available
No data available
Other satellites on launch #6 in the year 1967 (1967-01-26 UTC)
| ESSA 4 (TOS-B), 2657 |
| DELTA 1 R/B, 2661 |
| DELTA 1 DEB, 2706 |
| DELTA 1 DEB, 2707 |
| DELTA 1 DEB, 5971 |
ESSA 4 (TOS-B) 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. |
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