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ESSA 1 (OT-3), 1982

Orbit data source: Space-Track

ESSA 1 (OT-3), 1982 is a payload satellite 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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Identifier
1982, 1966-008A
Orbit
SSO
Last TLE update
9 hours ago
Origin
Manufacturer
RCA/East Windsor
Mission
Non-operational Civil Weather
Bus & Motor
TIROS I, Unknown motor
Mass
138 kg wet, 138 kg dry
Launch date (UTC)
1966-02-03 (59 years ago)
Launch vehicle
THOR DELTA C
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Cyl, 1.07 m
Radar Cross Section
0.920 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 9 hours ago
0 ESSA 1 (OT-3)
1  1982U 66008A   25141.66189679  .00000131  00000-0  45106-4 0  9990
2  1982  97.8629 196.6655 0078920 233.2165 126.1769 14.48119770122031
Epoch: 2025-05-21T15:53Z
TLE epoch observation values (Epoch: 2025-05-21T15:53:07.882Z)
Latitude
-0.00002°
Longitude
78.84006°
Altitude
768.19 km
Speed
7.453 km/s
True Right ascension
13h 06m 39s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
8.54786°
Longitude
-99.62456°
Altitude
706.306 km
Speed
7.518 km/s
Apparent Right ascension
23h 53m 32s
Apparent Declination
-15° 32' 20"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
09:57:32
Azimuth
305.667° NW
Elevation
-54.905°
Doppler factor
1
Orbital elements
Apogee altitude
784.966 km
Perigee altitude
672.789 km
Semi-major axis
7,107.015 km
Eccentricity
0.00789
Inclination
97.8629°
RAAN
196.6655°
Arg. of periapsis
233.2165°
True anomaly
Unknown
Mean anomaly
126.1769°
Eccentric anomaly
Unknown
Mean motion
3.62253 °/min
Orbital period
99.38 mins
BSTAR
0.000045106
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Other satellites on launch #8 in the year 1966 (1966-02-03 UTC)

ESSA 1 (OT-3) 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.
8 mins2025-05-22 03:37:21.206Z164.762° S2025-05-22 03:41:21.206Z356.478° N44.089°2025-05-22 03:45:21.206Z348.25° N
7 mins2025-05-22 15:42:21.206Z43.703° NE2025-05-22 15:45:21.206Z91.202° ESE25.435°2025-05-22 15:49:21.206Z152.304° SSE
6 mins2025-05-22 17:21:21.206Z336.508° NNW2025-05-22 17:23:21.206Z302.569° NW26.201°2025-05-22 17:27:21.206Z236.136° WSW
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