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 Civil Imaging
Bus & Motor
NIMBUS, Unknown motor
Mass
891 kg wet, 891 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cone + 2 Pan, 1.6 m
Radar Cross Section
2.170 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 LANDSAT 1 (ERTS 1)
1 06126U 72058A 25261.03390324 -.00000129 00000-0 -58298-4 0 9997
2 06126 99.3648 280.8460 0007145 275.7275 84.3072 13.97801209709938Epoch: 2025-09-18T00:48Z
TLE epoch observation values (Epoch: 2025-09-18T00:48:49.239Z)
Latitude
-0.00008°
Longitude
-88.56045°
Altitude
903.769 km
Speed
7.4 km/s
True Right ascension
18h 43m 23s
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
10:43:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
903.839 km
Perigee altitude
893.44 km
Semi-major axis
7,276.777 km
Eccentricity
0.00071
Inclination
99.3648°
RAAN
280.846°
Arg. of periapsis
275.7275°
True anomaly
84.38868°
Mean anomaly
84.3072°
Eccentric anomaly
84.34794°
Mean motion
3.49651 °/min
Orbital period
102.96 mins
BSTAR
-0.000058298
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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 | 2025-09-19 00:58:56.114Z | 149.086° SSE | 2025-09-19 01:03:56.114Z | 62.41° ENE | 41.428° | 2025-09-19 01:08:56.114Z | 353.495° N |
| 5 mins | 2025-09-19 02:43:56.114Z | 244.11° WSW | 2025-09-19 02:45:56.114Z | 269.029° W | 17.022° | 2025-09-19 02:48:56.114Z | 303.442° NW |
| 8 mins | 2025-09-19 13:29:56.114Z | 41.695° NE | 2025-09-19 13:33:56.114Z | 98° ESE | 27.853° | 2025-09-19 13:37:56.114Z | 152.974° SSE |
| 8 mins | 2025-09-19 15:11:56.114Z | 348.015° N | 2025-09-19 15:15:56.114Z | 283.735° WNW | 30.041° | 2025-09-19 15:19:56.114Z | 232.783° WSW |
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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