LANDSAT 1 (ERTS 1), 6126
Orbit data source: Space-Track
LANDSAT 1 (ERTS 1), 6126 is a payload satellite owned by GSFC (US) in SSO that was launched on Sun, 23 Jul 1972 UTC via a DELTA 0900 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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6126 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
GE/MSVD
Mission
Non-operational spacecraft
Bus & Motor
NIMBUS, Unknown motor
Mass
891 kg wet, 891 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 8 hours ago
TLE from 8 hours ago
0 LANDSAT 1 (ERTS 1)
1 6126U 72058A 25319.80052291 -.00000086 00000-0 -27625-4 0 9996
2 6126 99.3594 340.7425 0008665 113.7306 246.4766 13.97815795718148Epoch: 2025-11-15T19:12Z
TLE epoch observation values (Epoch: 2025-11-15T19:12:45.179Z)
Latitude
-0°
Longitude
-2.57021°
Altitude
906.754 km
Speed
7.397 km/s
True Right ascension
22h 42m 58s
True Declination
0° 00' 00"
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
23:37:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
904.894 km
Perigee altitude
892.283 km
Semi-major axis
7,276.726 km
Eccentricity
0.00087
Inclination
99.3594°
RAAN
340.7425°
Arg. of periapsis
113.7306°
True anomaly
246.3856°
Mean anomaly
246.4766°
Eccentric anomaly
246.43109°
Mean motion
3.49655 °/min
Orbital period
102.96 mins
BSTAR
-0.000027625
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Other satellites on launch #58 in the year 1972 (1972-07-23 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.LANDSAT 1 (ERTS 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 | 2025-11-16 13:01:07.961Z | 59.391° ENE | 2025-11-16 13:04:07.961Z | 92.025° ESE | 14.248° | 2025-11-16 13:06:07.961Z | 114.649° SE |
| 9 mins | 2025-11-16 14:42:07.961Z | 8.12° NNE | 2025-11-16 14:46:07.961Z | 296.732° NW | 43.669° | 2025-11-16 14:51:07.961Z | 204.669° SW |
| 8 mins | 2025-11-17 00:34:07.961Z | 117.11° SE | 2025-11-17 00:37:07.961Z | 75.059° E | 27.84° | 2025-11-17 00:42:07.961Z | 7.311° NNE |
| 9 mins | 2025-11-17 02:15:07.961Z | 203.683° SW | 2025-11-17 02:19:07.961Z | 262.16° W | 30.01° | 2025-11-17 02:24:07.961Z | 326.633° NNW |
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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