OPS 0757 (TACSAT), 3691
Orbit data source: Space-Track
OPS 0757 (TACSAT), 3691 is a payload satellite owned by SAMSO (US) in GEO that was launched on Sun, 09 Feb 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.
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3691 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Last TLE update
14 hours ago
Origin
Manufacturer
Hughes
Mission
Non-operational Defense Communications
Bus & Motor
HS-308, Unknown motor
Mass
721 kg wet, ~650 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, 7.6 m
Radar Cross Section
19.792 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & history
TLE from 14 hours ago
0 OPS 0757 (TACSAT)
1 03691U 69013A 25181.67192528 -.00000045 00000-0 00000-0 0 9995
2 03691 1.9562 76.3709 0018891 165.7061 83.3995 1.00397078110575Epoch: 2025-06-30T16:07Z
TLE epoch observation values (Epoch: 2025-06-30T16:07:34.344Z)
Latitude
-1.849°
Longitude
164.82533°
Altitude
35,741.967 km
Speed
3.077 km/s
True Right ascension
21h 42m 47s
True Declination
-1° 50' 50"
Sunlit
Visualization orbit readout
Latitude
1.96478°
Longitude
9.74969°
Altitude
35,725.591 km
Speed
3.078 km/s
Apparent Right ascension
10h 55m 56s
Apparent Declination
-3° 32' 58"
Sunlit
Visualization observer readout
Local Sidereal Time
17:23:19
Azimuth
271.668° WNW
Elevation
-7.526°
Doppler factor
1
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3691 neighbors
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Other satellites on launch #13 in the year 1969 (1969-02-09 UTC)
OPS 0757 (TACSAT) Visibility
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. |
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Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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