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 25287.70369850 .00000034 00000-0 00000-0 0 9992
2 08820 109.8418 95.2660 0044665 354.8270 22.0636 6.38664838897468Epoch: 2025-10-14T16:53Z
TLE epoch observation values (Epoch: 2025-10-14T16:53:19.550Z)
Latitude
16.04399°
Longitude
172.51046°
Altitude
5,843.085 km
Speed
5.724 km/s
True Right ascension
05h 57m 19s
True Declination
15° 59' 27"
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
12:02:33
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
109.8418°
RAAN
95.266°
Arg. of periapsis
354.827°
True anomaly
22.25686°
Mean anomaly
22.0636°
Eccentric anomaly
22.16013°
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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-10-15 20:32:02.456Z | 78.503° E | 2025-10-15 20:35:02.456Z | 85.176° E | 10.193° | 2025-10-15 20:37:02.456Z | 89.626° E |
| 56 mins | 2025-10-15 23:47:02.456Z | 27.752° NE | 2025-10-16 00:15:02.456Z | 121.542° SE | 44.067° | 2025-10-16 00:43:02.456Z | 202.687° SW |
| 48 mins | 2025-10-16 03:20:02.456Z | 31.431° NE | 2025-10-16 03:43:02.456Z | 332.173° NNW | 34.858° | 2025-10-16 04:08:02.456Z | 270.215° WNW |
| 45 mins | 2025-10-16 06:42:02.456Z | 74.064° E | 2025-10-16 07:04:02.456Z | 17.352° NNE | 31.93° | 2025-10-16 07:27:02.456Z | 321.907° NNW |
| 56 mins | 2025-10-16 10:03:02.456Z | 143.945° SSE | 2025-10-16 10:30:02.456Z | 55.347° ENE | 44.995° | 2025-10-16 10:59:02.456Z | 333.889° NNW |
| 36 mins | 2025-10-16 13:50:02.456Z | 226.473° WSW | 2025-10-16 14:07:02.456Z | 267.349° W | 19.15° | 2025-10-16 14:26:02.456Z | 312.851° NW |
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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