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OPS 6909 (VELA 9), 3954

Orbit data source: Space-Track

OPS 6909 (VELA 9), 3954 is a payload satellite owned by SAMSO (US) in HEO that was launched on Fri, 23 May 1969 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.

Not visible in the next 10 days
Identifier
3954, 1969-046D
Orbit
HEO
Last TLE update
18 hours ago
Origin
Manufacturer
TRW
Mission
Defense Early Warn
Bus & Motor
VELA, BE-3A7
Mass
348 kg wet, 250 kg dry
Launch date (UTC)
1969-05-23 (56 years ago)
Launch vehicle
TITAN IIIC
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Ico Poly, 0.6 m
Radar Cross Section
1.747 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 18 hours ago
0 OPS 6909 (VELA 9)
1  3954U 69046D   25197.13695444  .00000474  00000-0  00000+0 0  9990
2  3954  88.5585  36.1316 6663541  97.6356   0.1513  0.21507631 44091
Epoch: 2025-07-16T03:17Z
TLE epoch observation values (Epoch: 2025-07-16T03:17:12.863Z)
Latitude
82.47639°
Longitude
-139.57822°
Altitude
32,459.193 km
Speed
4.141 km/s
True Right ascension
13h 35m 47s
True Declination
82° 28' 05"
Sunlit
Object was in daylight at epoch
Visualization orbit readout
Latitude
-53.24485°
Longitude
-125.26911°
Altitude
118,224.112 km
Speed
1.735 km/s
Apparent Right ascension
14h 47m 49s
Apparent Declination
-54° 43' 21"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
09:31:23
Azimuth
140.832° SSE
Elevation
-26.112°
Doppler factor
1
Orbital elements
Apogee altitude
189,704.597 km
Perigee altitude
32,882.546 km
Semi-major axis
117,671.709 km
Eccentricity
0.66635
Inclination
88.5585°
RAAN
36.1316°
Arg. of periapsis
97.6356°
True anomaly
Unknown
Mean anomaly
0.1513°
Eccentric anomaly
Unknown
Mean motion
0.05377 °/min
Orbital period
6,695.26 mins
BSTAR
0
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