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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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https://www.satcat.com/sats-embedded/6126?theme=dark&initialShowStats=false

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Identifier

6126, 1972-058A

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

GE/MSVD

Mission

Non-operational spacecraft

Bus & Motor

NIMBUS, Unknown motor

Mass

891 kg wet, 891 kg dry

Launch date (UTC)

1972-07-23 (54 years ago)

Launch vehicle

DELTA 0900

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 LANDSAT 1 (ERTS 1)
1 06126U 72058A   26031.67606973 -.00000223  00000-0 -12496-3 0  9997
2 06126  99.3522  59.0326 0007337 266.1018  93.9305 13.97824026728880

Epoch: 2026-01-31T16:13Z

TLE epoch observation values (Epoch: 2026-01-31T16:13:32.424Z)

Latitude

-0.00007°

Longitude

44.75087°

Altitude

904.573 km

Speed

7.4 km/s

True Right ascension

03h 56m 07s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

09:20:16

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

903.899 km

Perigee altitude

893.221 km

Semi-major axis

7,276.697 km

Eccentricity

0.00073

Inclination

99.3522°

RAAN

59.0326°

Arg. of periapsis

266.1018°

True anomaly

94.01437°

Mean anomaly

93.9305°

Eccentric anomaly

93.97244°

Mean motion

3.49657 °/min

Orbital period

102.96 mins

BSTAR

-0.00012496

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Other satellites on launch #58 in the year 1972 (1972-07-23 UTC)

DELTA 1 DEB, 8500 (Decayed)

DELTA 1 DEB, 7941 (Decayed)

DELTA 1 DEB, 9676 (Decayed)

DELTA 1 DEB, 7869 (Decayed)

DELTA 1 DEB, 8094 (Decayed)

DELTA 1 DEB, 7945 (Decayed)

DELTA 1 DEB, 42555

DELTA 1 DEB, 42565

DELTA 1 DEB, 8099 (Decayed)

DELTA 1 DEB, 7976 (Decayed)

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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.
7 mins	2026-02-01 13:27:37.904Z	52.32° ENE	2026-02-01 13:30:37.904Z	88.038° E	19.8°	2026-02-01 13:34:37.904Z	137.008° SSE
9 mins	2026-02-01 15:08:37.904Z	0.6° NNE	2026-02-01 15:12:37.904Z	302.16° NW	38.253°	2026-02-01 15:17:37.904Z	217.522° SW
8 mins	2026-02-02 01:00:37.904Z	129.685° SE	2026-02-02 01:04:37.904Z	55.177° ENE	34.415°	2026-02-02 01:08:37.904Z	2.483° NNE
7 mins	2026-02-02 02:42:37.904Z	220.099° SW	2026-02-02 02:45:37.904Z	259.391° W	23.256°	2026-02-02 02:49:37.904Z	312.495° NW

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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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Check out LANDSAT 1 (ERTS 1), 6126 on other resources

View LANDSAT 1 (ERTS 1), 6126 on NASA - NSSDCA Website

View LANDSAT 1 (ERTS 1), 6126 on Heavens-Above

View LANDSAT 1 (ERTS 1), 6126 on Keep Track

View LANDSAT 1 (ERTS 1), 6126 on Celestrak

View LANDSAT 1 (ERTS 1), 6126 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

LANDSAT 1 (ERTS 1), 6126

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-01-31T16:13:32.424Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #58 in the year 1972 (1972-07-23 UTC)

LANDSAT 1 (ERTS 1) Visibility forecast

Co-orbital & Co-planar RSOs

Check out LANDSAT 1 (ERTS 1), 6126 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago