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LES 9, 8747

Orbit data source: Space-Track

LES 9, 8747 is a payload satellite owned by SAMSO (US) in GEO that was launched on Mon, 15 Mar 1976 UTC via a TITAN IIIC launch vehicle from the Air Force Eastern Test Range (AFETR). Payloads include a variety of satellites, spacecraft, and rockets 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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LES 9 details

Identifier	8747, 1976-023B
Orbit	GEO
Last TLE update	20 hours ago
Origin	SAMSO (US)
Manufacturer	MIT-LL
Mission	Non-operational Defense Com/Tech
Bus & Motor	LES, Unknown motor
Mass	420 kg wet, 366 kg dry
Launch date (UTC)	1976-03-15 (49 years ago)
Launch vehicle	TITAN IIIC
Launch site	Air Force Eastern Test Range (AFETR)
Object type	Payload Rocket body Debris
Shape & HBR	Box + Cyl + 1 Ant, 4 m
Radar Cross Section	4.285 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 20 hours ago

0 LES 9
1 08747U 76023B   25035.34820014 -.00000092  00000-0  00000-0 0  9993
2 08747  21.4273  43.3957 0024594 167.5217 300.9167  1.00272485124687

Epoch: 2025-02-04T08:21Z

Definitive object data (Epoch: 2025-02-04T08:21:24.492Z)

Latitude	20.32288°
Longitude	-107.25473°
Altitude	35,732.807 km
Speed	3.079 km/s
True Right ascension	10h 11m 24s
True Declination	20° 18' 14"
Sunlit	Object was in daylight at TLE epoch

Visualization TLE readout

Latitude	14.51154°
Longitude	-175.46375°
Altitude	35,843.227 km
Speed	3.071 km/s
Apparent Right ascension	05h 35m 37s
Apparent Declination	10° 13' 55"
Sunlit	Object is in daylight

Visualization observer readout

Local Sidereal Time	06:00:16
Azimuth	192.132° SSW
Elevation	59.815°
Doppler factor	1

Orbital elements

Apogee altitude	35,890.962 km
Perigee altitude	35,683.558 km
Semi-major axis	42,165.397 km
Eccentricity	0.0024594
Inclination	21.4273°
RAAN	43.3957°
Arg. of periapsis	167.5217°
True anomaly	300.67454°
Mean anomaly	300.9167°
Eccentric anomaly	300.79566°
Mean motion	0.25067 °/min
BSTAR	Unknown
Orbital period	1436.13 mins