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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 update22 hours ago
Origin
Flag of USSAMSO (US)
ManufacturerMIT-LL
MissionNon-operational Defense Com/Tech
Bus & MotorLES, Unknown motor
Mass420 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 & HBRBox + Cyl + 1 Ant, 4 m
Radar Cross Section4.285 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 22 hours ago
0 LES 9
1  8747U 76023B   25046.55576767 -.00000086  00000-0  00000+0 0  9993
2  8747  21.4494  43.2513 0024585 167.7452  26.5916  1.00272781124785
Epoch: 2025-02-15T13:20Z
Definitive object data (Epoch: 2025-02-15T13:20:18.326Z)
Latitude-5.23666°
Longitude-109.11009°
Altitude35,694.6 km
Speed3.081 km/s
True Right ascension15h 47m 04s
True Declination-5° 13' 53"
Sunlit
Object was in daylight at TLE epoch
Visualization TLE readout
Latitude4.37185°
Longitude-133.82789°
Altitude35,682.046 km
Speed3.082 km/s
Apparent Right ascension14h 06m 57s
Apparent Declination-1° 20' 32"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time14:17:35
Azimuth184.025° SSW
Elevation48.67°
Doppler factor1
Orbital elements
Apogee altitude35,890.84 km
Perigee altitude35,683.513 km
Semi-major axis42,165.314 km
Eccentricity0.0024585
Inclination21.4494°
RAAN43.2513°
Arg. of periapsis167.7452°
True anomaly26.71805°
Mean anomaly26.5916°
Eccentric anomaly26.65479°
Mean motion0.25067 °/min
BSTARUnknown
Orbital period1436.13 mins
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8747 neighbors
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LES 9 Visibility forecast

Observer location: undefined°, undefined

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.
1440 mins2025-02-16 11:31:12.735Z184.024° SSW2025-02-17 06:25:12.735Z189.609° SSW42.851°2025-02-17 11:31:12.735Z184.095° SSW
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