LES 6, 3431
Orbit data source: Space-Track
LES 6, 3431 is a payload satellite owned by SAMSO (US) in GEO that was launched on Thu, 26 Sep 1968 UTC via a TITAN IIIC launch vehicle from the Air Force Eastern Test Range (AFETR). 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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3431 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
MIT-LL
Mission
Non-operational Defense Communications
Bus & Motor
LES, Unknown motor
Mass
169 kg wet, ~149 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, 0.8 m
Radar Cross Section
2.168 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 LES 6
1 03431U 68081D 25259.55764523 .00000057 00000-0 00000-0 0 9996
2 03431 1.1410 19.6013 0007320 308.0876 97.2402 1.00209101118046Epoch: 2025-09-16T13:23Z
TLE epoch observation values (Epoch: 2025-09-16T13:23:00.547Z)
Latitude
0.79297°
Longitude
-131.49189°
Altitude
35,807.408 km
Speed
3.074 km/s
True Right ascension
04h 20m 01s
True Declination
0° 47' 32"
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
15:19:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,836.124 km
Perigee altitude
35,774.368 km
Semi-major axis
42,183.383 km
Eccentricity
0.00073
Inclination
1.141°
RAAN
19.6013°
Arg. of periapsis
308.0876°
True anomaly
97.3234°
Mean anomaly
97.2402°
Eccentric anomaly
97.2818°
Mean motion
0.25051 °/min
Orbital period
1,437.05 mins
BSTAR
0
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Other satellites on launch #81 in the year 1968 (1968-09-26 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.LES 6 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2025-09-16 22:35:33.796Z | 217.952° SW | 2025-09-17 16:23:33.796Z | 218.788° SW | 31.261° | 2025-09-17 22:35:33.796Z | 218.214° SW |
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3431 neighbors
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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
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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