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 Civil Geodetic
Bus & Motor
LAGEOS, Unknown motor
Mass
411 kg wet, 411 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Sphere, 0.3 m
Radar Cross Section
0.283 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 LAGEOS 1
1 08820U 76039A 25257.34624802 .00000035 00000-0 00000-0 0 9991
2 08820 109.8453 84.8670 0044660 1.3155 64.3962 6.38664836895527Epoch: 2025-09-14T08:18Z
TLE epoch observation values (Epoch: 2025-09-14T08:18:35.828Z)
Latitude
59.43687°
Longitude
-70.86512°
Altitude
5,879.01 km
Speed
5.712 km/s
True Right ascension
03h 09m 24s
True Declination
59° 20' 57"
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
01:43:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,946.679 km
Perigee altitude
5,837.084 km
Semi-major axis
12,270.019 km
Eccentricity
0.00447
Inclination
109.8453°
RAAN
84.867°
Arg. of periapsis
1.3155°
True anomaly
64.85882°
Mean anomaly
64.3962°
Eccentric anomaly
64.6274°
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. |
|---|---|---|---|---|---|---|---|
| 54 mins | 2025-09-15 10:02:14.283Z | 117.702° SE | 2025-09-15 10:29:14.283Z | 41.449° NE | 41.628° | 2025-09-15 10:56:14.283Z | 332.404° NNW |
| 51 mins | 2025-09-15 13:37:14.283Z | 188.759° SSW | 2025-09-15 14:02:14.283Z | 257.712° W | 34.825° | 2025-09-15 14:28:14.283Z | 327.455° NNW |
| 40 mins | 2025-09-15 22:26:14.283Z | 45.762° ENE | 2025-09-15 22:46:14.283Z | 93.953° ESE | 21.227° | 2025-09-15 23:06:14.283Z | 141.253° SSE |
| 56 mins | 2025-09-16 01:55:14.283Z | 26.37° NE | 2025-09-16 02:22:14.283Z | 324.648° NNW | 44.918° | 2025-09-16 02:51:14.283Z | 218.901° SW |
| 45 mins | 2025-09-16 05:26:14.283Z | 38.162° NE | 2025-09-16 05:48:14.283Z | 343.969° N | 31.52° | 2025-09-16 06:11:14.283Z | 286.956° WNW |
| 19 mins | 2025-09-16 08:46:14.283Z | 90.362° ESE | 2025-09-16 09:05:14.283Z | 46.26° ENE | 34.604° | 2025-09-16 09:05:14.283Z | 46.26° ENE |
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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