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: 22 hours ago
TLE from 22 hours ago
0 LANDSAT 1 (ERTS 1)
1 06126U 72058A 25362.96256197 -.00000206 00000-0 -11261-3 0 9994
2 06126 99.3547 24.7037 0007867 3.9135 356.2088 13.97818438724171Epoch: 2025-12-28T23:06Z
TLE epoch observation values (Epoch: 2025-12-28T23:06:05.354Z)
Latitude
0.00006°
Longitude
-59.48563°
Altitude
898.507 km
Speed
7.406 km/s
True Right ascension
01h 38m 48s
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
20:27:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
904.304 km
Perigee altitude
892.855 km
Semi-major axis
7,276.716 km
Eccentricity
0.00079
Inclination
99.3547°
RAAN
24.7037°
Arg. of periapsis
3.9135°
True anomaly
356.20283°
Mean anomaly
356.2088°
Eccentric anomaly
356.20582°
Mean motion
3.49655 °/min
Orbital period
102.96 mins
BSTAR
-0.00011261
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-12-30 00:59:11.055Z | 140.846° SSE | 2025-12-30 01:04:11.055Z | 73.532° E | 36.571° | 2025-12-30 01:09:11.055Z | 359.099° N |
| 7 mins | 2025-12-30 02:43:11.055Z | 225.906° WSW | 2025-12-30 02:46:11.055Z | 265.698° W | 21.451° | 2025-12-30 02:50:11.055Z | 313.946° NW |
| 7 mins | 2025-12-30 13:31:11.055Z | 53.769° ENE | 2025-12-30 13:34:11.055Z | 94.361° ESE | 22.669° | 2025-12-30 13:38:11.055Z | 144.082° SSE |
| 9 mins | 2025-12-30 15:12:11.055Z | 355.097° N | 2025-12-30 15:16:11.055Z | 286.608° WNW | 35.562° | 2025-12-30 15:21:11.055Z | 220.95° SW |
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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