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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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https://www.satcat.com/sats-embedded/1982?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

1982, 1966-008A

Orbit

SSO

Country

Related business

National Oceanic and Atmospheric Administration (US)

Manufacturer

RCA/East Windsor

Mission

Non-operational spacecraft

Bus & Motor

TIROS I, Unknown motor

Mass

138 kg wet, 138 kg dry

Launch date (UTC)

1966-02-03 (60 years ago)

Launch vehicle

THOR DELTA C

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 14 hours ago

TLE from 14 hours ago

0 ESSA 1 (OT-3)
1  1982U 66008A   26062.08169993  .00000238  00000-0  71841-4 0  9999
2  1982  97.8258 101.8368 0081120  72.5268 288.4774 14.48295547142589

Epoch: 2026-03-03T01:57Z

TLE epoch observation values (Epoch: 2026-03-03T01:57:38.873Z)

Latitude

0.00003°

Longitude

-88.44105°

Altitude

716.343 km

Speed

7.507 km/s

True Right ascension

06h 47m 20s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

19:39:07

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

785.948 km

Perigee altitude

670.653 km

Semi-major axis

7,106.438 km

Eccentricity

0.00811

Inclination

97.8258°

RAAN

101.8368°

Arg. of periapsis

72.5268°

True anomaly

287.59295°

Mean anomaly

288.4774°

Eccentric anomaly

288.03545°

Mean motion

3.62297 °/min

Orbital period

99.37 mins

BSTAR

0.000071841

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Other satellites on launch #8 in the year 1966 (1966-02-03 UTC)

DELTA 1 DEB, 2118

DELTA 1 R/B, 1983

DELTA 1 DEB, 2154

DELTA 1 DEB, 2085 (Decayed)

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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.

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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.
7 mins	2026-03-04 02:57:50.272Z	192.149° SSW	2026-03-04 03:00:50.272Z	266.886° W	37.76°	2026-03-04 03:04:50.272Z	335.659° NNW
7 mins	2026-03-04 15:01:50.272Z	33.518° NE	2026-03-04 15:04:50.272Z	106.24° ESE	36.87°	2026-03-04 15:08:50.272Z	172.38° S

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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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Check out ESSA 1 (OT-3), 1982 on other resources

View ESSA 1 (OT-3), 1982 on NASA - NSSDCA Website

View ESSA 1 (OT-3), 1982 on Heavens-Above

View ESSA 1 (OT-3), 1982 on Keep Track

View ESSA 1 (OT-3), 1982 on Celestrak

View ESSA 1 (OT-3), 1982 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

ESSA 1 (OT-3), 1982

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-03-03T01:57:38.873Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #8 in the year 1966 (1966-02-03 UTC)

ESSA 1 (OT-3) Visibility forecast

Co-orbital & Co-planar RSOs

Check out ESSA 1 (OT-3), 1982 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago