ESSA 1 (OT-3), 1982
Orbit data source: Space-Track
ESSA 1 (OT-3), 1982 is a payload satellite owned by ESSA (US) in SSO that was launched on Thu, 03 Feb 1966 UTC via a THOR DELTA C 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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1982 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
RCA/East Windsor
Mission
Non-operational spacecraft
Bus & Motor
TIROS I, Unknown motor
Mass
138 kg wet, 138 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 ESSA 1 (OT-3)
1 01982U 66008A 25322.06607274 .00000310 00000-0 90519-4 0 9998
2 01982 97.8415 4.4299 0080698 37.5373 323.1419 14.48226581127388Epoch: 2025-11-18T01:35Z
TLE epoch observation values (Epoch: 2025-11-18T01:35:08.684Z)
Latitude
0.00005°
Longitude
-76.71379°
Altitude
688.68 km
Speed
7.536 km/s
True Right ascension
00h 17m 43s
True Declination
0° 00' 00"
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
03:42:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
785.877 km
Perigee altitude
671.178 km
Semi-major axis
7,106.664 km
Eccentricity
0.00807
Inclination
97.8415°
RAAN
4.4299°
Arg. of periapsis
37.5373°
True anomaly
322.58271°
Mean anomaly
323.1419°
Eccentric anomaly
322.86276°
Mean motion
3.6228 °/min
Orbital period
99.37 mins
BSTAR
0.000090519
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Other satellites on launch #8 in the year 1966 (1966-02-03 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.ESSA 1 (OT-3) Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-11-19 14:39:31.491Z | 51.861° ENE | 2025-11-19 14:42:31.491Z | 90.58° ESE | 16.948° | 2025-11-19 14:45:31.491Z | 130.146° SE |
| 7 mins | 2025-11-19 16:18:31.491Z | 350.566° N | 2025-11-19 16:21:31.491Z | 274.783° WNW | 36.956° | 2025-11-19 16:25:31.491Z | 215.161° SW |
| 4 mins | 2025-11-20 01:50:31.491Z | 95.219° ESE | 2025-11-20 01:52:31.491Z | 64.61° ENE | 16.996° | 2025-11-20 01:54:31.491Z | 34.413° NE |
| 7 mins | 2025-11-20 03:27:31.491Z | 196.77° SSW | 2025-11-20 03:30:31.491Z | 261.73° W | 34.733° | 2025-11-20 03:34:31.491Z | 332.329° NNW |
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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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