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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Identifier
Orbit
Country
USRelated business
Manufacturer
MIT-LL
Mission
Non-operational spacecraft
Bus & Motor
LES, Unknown motor
Mass
169 kg wet, ~149 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
CYL, 1.1 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 LES 6
1 03431U 68081D 26258.19383197 -.00000043 00000-0 00000-0 0 9996
2 03431 1.7068 44.5207 0007758 289.6793 334.5421 1.00349779121688Epoch: 2026-09-15T04:39Z
TLE epoch observation values (Epoch: 2026-09-15T04:39:07.082Z)
Latitude
-1.68431°
Longitude
-115.24992°
Altitude
35,734.903 km
Speed
3.078 km/s
True Right ascension
20h 34m 46s
True Declination
-1° 40' 57"
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
03:24:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,798.509 km
Perigee altitude
35,733.119 km
Semi-major axis
42,143.951 km
Eccentricity
0.00078
Inclination
1.7068°
RAAN
44.5207°
Arg. of periapsis
289.6793°
True anomaly
334.50385°
Mean anomaly
334.5421°
Eccentric anomaly
334.52298°
Mean motion
0.25087 °/min
Orbital period
1,435.03 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 | 2026-09-15 10:46:55.291Z | 195.245° SSW | 2026-09-15 17:05:55.291Z | 195.793° SSW | 44.573° | 2026-09-16 10:46:55.291Z | 194.838° SSW |
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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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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