LAGEOS 1, 8820
Orbit data source: Space-Track
LAGEOS 1, 8820 is a payload satellite owned by NASA MSFC (US) that was launched on Tue, 04 May 1976 UTC via a DELTA 2913 launch vehicle from the Air Force Western Test Range (AFWTR). 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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8820 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Bendix
Mission
Operational spacecraft
Bus & Motor
LAGEOS, Unknown motor
Mass
411 kg wet, 411 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 LAGEOS 1
1 8820U 76039A 25308.24656683 .00000017 00000-0 00000+0 0 9998
2 8820 109.8398 102.3038 0044665 350.4288 94.1065 6.38664844898773Epoch: 2025-11-04T05:55Z
TLE epoch observation values (Epoch: 2025-11-04T05:55:03.374Z)
Latitude
69.64303°
Longitude
-105.89249°
Altitude
5,908.829 km
Speed
5.699 km/s
True Right ascension
01h 46m 25s
True Declination
69° 34' 40"
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
02:08:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,946.685 km
Perigee altitude
5,837.077 km
Semi-major axis
12,270.018 km
Eccentricity
0.00447
Inclination
109.8398°
RAAN
102.3038°
Arg. of periapsis
350.4288°
True anomaly
94.6168°
Mean anomaly
94.1065°
Eccentric anomaly
94.36167°
Mean motion
1.59689 °/min
Orbital period
225.44 mins
BSTAR
0
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Other satellites on launch #39 in the year 1976 (1976-05-04 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.LAGEOS 1 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. |
|---|---|---|---|---|---|---|---|
| 52 mins | 2025-11-05 07:29:25.055Z | 110.231° ESE | 2025-11-05 07:55:25.055Z | 40.566° NE | 39.938° | 2025-11-05 08:21:25.055Z | 331.904° NNW |
| 54 mins | 2025-11-05 11:01:25.055Z | 179.893° S | 2025-11-05 11:27:25.055Z | 253.465° W | 38.173° | 2025-11-05 11:55:25.055Z | 330.432° NNW |
| 31 mins | 2025-11-05 19:55:25.055Z | 53.78° ENE | 2025-11-05 20:10:25.055Z | 88.552° E | 16.305° | 2025-11-05 20:26:25.055Z | 125.567° SE |
| 56 mins | 2025-11-05 23:21:25.055Z | 26.88° NE | 2025-11-05 23:48:25.055Z | 99.914° ESE | 44.913° | 2025-11-06 00:17:25.055Z | 211.645° SW |
| 46 mins | 2025-11-06 02:53:25.055Z | 34.548° NE | 2025-11-06 03:15:25.055Z | 339.526° N | 32.888° | 2025-11-06 03:39:25.055Z | 279.665° WNW |
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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