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
13 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 13 hours ago
0 OPS 0757 (TACSAT)
1 03691U 69013A 25181.54203044 -.00000046 00000-0 00000-0 0 9998
2 03691 1.9559 76.3712 0018886 165.7097 36.4467 1.00397066110578Epoch: 2025-06-30T13:00Z
TLE epoch observation values (Epoch: 2025-06-30T13:00:31.43Z)
Latitude
-0.76155°
Longitude
164.67932°
Altitude
35,686.925 km
Speed
3.081 km/s
True Right ascension
18h 34m 38s
True Declination
0° 45' 39"
Sunlit
Visualization orbit readout
Latitude
1.12235°
Longitude
-3.34834°
Altitude
35,803.709 km
Speed
3.072 km/s
Apparent Right ascension
06h 56m 02s
Apparent Declination
-4° 22' 08"
Sunlit
Visualization observer readout
Local Sidereal Time
13:23:34
Azimuth
271.055° WNW
Elevation
-8.077°
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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