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: 11 hours ago
TLE from 11 hours ago
0 LAGEOS 1
1 8820U 76039A 25311.67541799 .00000015 00000-0 00000+0 0 9998
2 8820 109.8394 103.4786 0044663 349.6951 57.7003 6.38664840898993Epoch: 2025-11-07T16:12Z
TLE epoch observation values (Epoch: 2025-11-07T16:12:36.114Z)
Latitude
44.27607°
Longitude
152.69124°
Altitude
5,869.644 km
Speed
5.715 km/s
True Right ascension
05h 31m 49s
True Declination
44° 10' 34"
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
23:43:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
5,946.683 km
Perigee altitude
5,837.08 km
Semi-major axis
12,270.018 km
Eccentricity
0.00447
Inclination
109.8394°
RAAN
103.4786°
Arg. of periapsis
349.6951°
True anomaly
58.1342°
Mean anomaly
57.7003°
Eccentric anomaly
57.91712°
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. |
|---|---|---|---|---|---|---|---|
| 45 mins | 2025-11-08 03:39:00.891Z | 43.345° NE | 2025-11-08 04:01:00.891Z | 349.647° N | 30.225° | 2025-11-08 04:24:00.891Z | 294.497° NW |
| 50 mins | 2025-11-08 06:58:00.891Z | 100.64° ESE | 2025-11-08 07:22:00.891Z | 36.576° NE | 37.84° | 2025-11-08 07:48:00.891Z | 329.995° NNW |
| 55 mins | 2025-11-08 10:26:00.891Z | 170.624° S | 2025-11-08 10:53:00.891Z | 250.986° W | 41.206° | 2025-11-08 11:21:00.891Z | 331.475° NNW |
| 9 mins | 2025-11-08 19:31:00.891Z | 76.026° E | 2025-11-08 19:35:00.891Z | 84.954° E | 10.566° | 2025-11-08 19:40:00.891Z | 96.095° ESE |
| 56 mins | 2025-11-08 22:47:00.891Z | 27.625° NE | 2025-11-08 23:15:00.891Z | 120.289° SE | 44.15° | 2025-11-08 23:43:00.891Z | 203.175° SW |
| 48 mins | 2025-11-09 02:20:00.891Z | 31.652° NE | 2025-11-09 02:43:00.891Z | 332.627° NNW | 34.741° | 2025-11-09 03:08:00.891Z | 270.735° WNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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