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: 15 hours ago
TLE from 15 hours ago
0 LANDSAT 1 (ERTS 1)
1 06126U 72058A 25305.48471359 .00000290 00000-0 23757-3 0 9991
2 06126 99.3604 326.1560 0008582 148.6888 211.4786 13.97808723716143Epoch: 2025-11-01T11:37Z
TLE epoch observation values (Epoch: 2025-11-01T11:37:59.254Z)
Latitude
-0.00007°
Longitude
110.64499°
Altitude
909.586 km
Speed
7.395 km/s
True Right ascension
21h 44m 37s
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
22:42:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
904.858 km
Perigee altitude
892.368 km
Semi-major axis
7,276.75 km
Eccentricity
0.00086
Inclination
99.3604°
RAAN
326.156°
Arg. of periapsis
148.6888°
True anomaly
211.42729°
Mean anomaly
211.4786°
Eccentric anomaly
211.45294°
Mean motion
3.49653 °/min
Orbital period
102.96 mins
BSTAR
0.00023757
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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 | 2025-11-02 13:59:06.001Z | 25.599° NE | 2025-11-02 14:04:06.001Z | 92.166° ESE | 37.982° | 2025-11-02 14:09:06.001Z | 174.245° S |
| 6 mins | 2025-11-02 15:43:06.001Z | 331.468° NNW | 2025-11-02 15:46:06.001Z | 289.716° WNW | 21.007° | 2025-11-02 15:49:06.001Z | 253.806° W |
| 5 mins | 2025-11-02 23:54:06.001Z | 82.663° E | 2025-11-02 23:56:06.001Z | 59.578° ENE | 15.156° | 2025-11-02 23:59:06.001Z | 26.61° NE |
| 9 mins | 2025-11-03 01:33:06.001Z | 170.898° S | 2025-11-03 01:37:06.001Z | 254.918° W | 44.446° | 2025-11-03 01:42:06.001Z | 342.376° N |
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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