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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: 21 hours ago

TLE from 21 hours ago

0 LANDSAT 1 (ERTS 1)
1 06126U 72058A   26060.09272357 -.00000072  00000-0 -18241-4 0  9997
2 06126  99.3499  87.9633 0007805 183.7749 176.3356 13.97830011732854

Epoch: 2026-03-01T02:13Z

TLE epoch observation values (Epoch: 2026-03-01T02:13:31.316Z)

Latitude

0.00003°

Longitude

-104.32263°

Altitude

909.853 km

Speed

7.394 km/s

True Right ascension

05h 51m 51s

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

02:25:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

904.218 km

Perigee altitude

892.859 km

Semi-major axis

7,276.676 km

Eccentricity

0.00078

Inclination

99.3499°

RAAN

87.9633°

Arg. of periapsis

183.7749°

True anomaly

176.34131°

Mean anomaly

176.3356°

Eccentric anomaly

176.33846°

Mean motion

3.49658 °/min

Orbital period

102.96 mins

BSTAR

-0.000018241

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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, 14874 (Decayed)

DELTA 1 DEB, 7845 (Decayed)

DELTA 1 DEB, 8316 (Decayed)

DELTA 1 DEB, 13933 (Decayed)

DELTA 1 DEB, 8581 (Decayed)

DELTA 1 DEB, 8507 (Decayed)

DELTA 1 DEB, 42558

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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.
8 mins	2026-03-02 00:42:06.428Z	118.438° SE	2026-03-02 00:46:06.428Z	66.384° ENE	26.268°	2026-03-02 00:50:06.428Z	12.736° NNE
8 mins	2026-03-02 02:24:06.428Z	203.202° SW	2026-03-02 02:28:06.428Z	272.734° WNW	32.005°	2026-03-02 02:32:06.428Z	325.577° NNW
4 mins	2026-03-02 13:14:06.428Z	73.814° E	2026-03-02 13:15:06.428Z	85.026° E	13.472°	2026-03-02 13:18:06.428Z	117.995° SE
9 mins	2026-03-02 14:54:06.428Z	8.661° NNE	2026-03-02 14:58:06.428Z	255.849° W	43.852°	2026-03-02 15:03:06.428Z	202.59° SW

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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: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-03-01T02:13:31.316Z)

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: 21 hours ago