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: 9 hours ago
TLE from 9 hours ago
0 LANDSAT 1 (ERTS 1)
1 6126U 72058A 25356.01943367 -.00000171 00000-0 -87977-4 0 9994
2 6126 99.3555 17.6332 0008327 22.8339 337.3192 13.97820594723202Epoch: 2025-12-22T00:27Z
TLE epoch observation values (Epoch: 2025-12-22T00:27:59.069Z)
Latitude
0.00001°
Longitude
-80.18646°
Altitude
898.621 km
Speed
7.406 km/s
True Right ascension
01h 10m 31s
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
08:26:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
904.631 km
Perigee altitude
892.513 km
Semi-major axis
7,276.709 km
Eccentricity
0.00083
Inclination
99.3555°
RAAN
17.6332°
Arg. of periapsis
22.8339°
True anomaly
337.28237°
Mean anomaly
337.3192°
Eccentric anomaly
337.30079°
Mean motion
3.49656 °/min
Orbital period
102.96 mins
BSTAR
-0.000087977
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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 | 2025-12-22 13:07:38.965Z | 64.068° ENE | 2025-12-22 13:09:38.965Z | 86.266° E | 14.711° | 2025-12-22 13:12:38.965Z | 120.123° SE |
| 10 mins | 2025-12-22 14:47:38.965Z | 8.306° NNE | 2025-12-22 14:52:38.965Z | 255.417° W | 42.872° | 2025-12-22 14:57:38.965Z | 204.919° SW |
| 9 mins | 2025-12-23 00:38:38.965Z | 127.225° SE | 2025-12-23 00:43:38.965Z | 63.768° ENE | 28.508° | 2025-12-23 00:47:38.965Z | 9.595° NNE |
| 8 mins | 2025-12-23 02:21:38.965Z | 208.613° SW | 2025-12-23 02:24:38.965Z | 252.355° W | 29.113° | 2025-12-23 02:29:38.965Z | 323.737° 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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