ESSA 4 (TOS-B), 2657
Orbit data source: Space-Track
ESSA 4 (TOS-B), 2657 is a payload satellite owned by ESSA (US) in SSO 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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2657 intel report (Beta)
ESSA 4 (TOS-B) details
| Identifier | |
| Orbit | SSO |
| Last TLE update | 1 day 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 1 day ago
0 ESSA 4 (TOS-B)
1 02657U 67006A 25022.44436718 -.00000026 00000-0 11775-3 0 9990
2 02657 102.0657 190.8816 0073091 199.7716 184.6118 12.69879030687719Epoch: 2025-01-22T10:39Z
Definitive object data (Epoch: 2025-01-22T10:39:53.324Z)
| Latitude | 23.76909° |
| Longitude | -96.50191° |
| Altitude | 1,441.567 km |
| Speed | 7.117 km/s |
| True Right ascension | 12h 22m 01s |
| True Declination | 23° 39' 13" |
| Sunlit | Object was in daylight at TLE epoch |
Visualization TLE readout
| Latitude | 15.25582° |
| Longitude | 93.3858° |
| Altitude | 1,336.733 km |
| Speed | 7.213 km/s |
| Apparent Right ascension | 01h 50m 04s |
| Apparent Declination | -9° 45' 56" |
| Sunlit | Object is in daylight |
Visualization observer readout
| Local Sidereal Time | 15:04:31 |
| Azimuth | 33.837° NE |
| Elevation | -55.606° |
| Doppler factor | 1 |
Orbital elements
| Apogee altitude | 1,436.677 km |
| Perigee altitude | 1,323.268 km |
| Semi-major axis | 7,758.109 km |
| Eccentricity | 0.0073091 |
| Inclination | 102.0657° |
| RAAN | 190.8816° |
| Arg. of periapsis | 199.7716° |
| True anomaly | 184.54506° |
| Mean anomaly | 184.6118° |
| Eccentric anomaly | 184.57837° |
| Mean motion | 3.17621 °/min |
| BSTAR | 0.00011775 |
| Orbital period | 113.34 mins |
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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: 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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2025-01-23 23:06:22.797Z | 37.984° NE | 2025-01-23 23:12:22.797Z | 95.091° ESE | 30.251° | 2025-01-23 23:19:22.797Z | 162.161° S |
| 12 mins | 2025-01-24 00:58:22.797Z | 1.947° NNE | 2025-01-24 01:04:22.797Z | 289.312° WNW | 36.603° | 2025-01-24 01:10:22.797Z | 228.716° WSW |
| 13 mins | 2025-01-24 09:56:22.797Z | 127.179° SE | 2025-01-24 10:02:22.797Z | 67.475° ENE | 35.618° | 2025-01-24 10:09:22.797Z | 356.069° N |
| 14 mins | 2025-01-24 11:47:22.797Z | 196.01° SSW | 2025-01-24 11:54:22.797Z | 267.798° W | 32.97° | 2025-01-24 12:01:22.797Z | 327.588° NNW |
Authenticating...
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