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 08820U 76039A 25357.53472010 .00000008 00000-0 00000-0 0 9995
2 08820 109.8338 119.1923 0044659 339.8846 17.1208 6.38664923901913Epoch: 2025-12-23T12:49Z
TLE epoch observation values (Epoch: 2025-12-23T12:49:59.816Z)
Latitude
-2.73881°
Longitude
-164.63325°
Altitude
5,842.47 km
Speed
5.724 km/s
True Right ascension
08h 00m 43s
True Declination
-2° 43' 45"
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
21:23:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,946.676 km
Perigee altitude
5,837.083 km
Semi-major axis
12,270.017 km
Eccentricity
0.00447
Inclination
109.8338°
RAAN
119.1923°
Arg. of periapsis
339.8846°
True anomaly
17.27226°
Mean anomaly
17.1208°
Eccentric anomaly
17.19645°
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)
Did you know?
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. |
|---|---|---|---|---|---|---|---|
| 53 mins | 2025-12-24 23:30:39.432Z | 29.57° NE | 2025-12-24 23:56:39.432Z | 324.928° NNW | 38.666° | 2025-12-25 00:23:39.432Z | 254.763° W |
| 43 mins | 2025-12-25 02:57:39.432Z | 60.202° ENE | 2025-12-25 03:18:39.432Z | 7.43° NNE | 29.924° | 2025-12-25 03:40:39.432Z | 314.552° NW |
| 55 mins | 2025-12-25 06:15:39.432Z | 128.309° SE | 2025-12-25 06:42:39.432Z | 48.102° ENE | 43.66° | 2025-12-25 07:10:39.432Z | 333.427° NNW |
| 47 mins | 2025-12-25 09:54:39.432Z | 202.411° SSW | 2025-12-25 10:17:39.432Z | 262.423° W | 29.018° | 2025-12-25 10:41:39.432Z | 323.448° NNW |
| 48 mins | 2025-12-25 18:37:39.432Z | 37.459° NE | 2025-12-25 19:01:39.432Z | 97.507° ESE | 28.073° | 2025-12-25 19:25:39.432Z | 157.285° SSE |
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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