FLTSATCOM 8 (USA 46), 20253
Orbit data source: Space-Track
FLTSATCOM 8 (USA 46), 20253 is a payload satellite owned by SPAWAR (US) in GEO that was launched on Mon, 25 Sep 1989 UTC via an ATLAS G CENTAUR 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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20253 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
TRW
Mission
Operational Defense Communications
Bus & Motor
FLTSATCOM, STAR 37FM
Mass
1,928 kg wet, 822 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Hex Cyl + 1 Dish + 2 Pan, 6.6 m
Radar Cross Section
11.171 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 17 hours ago
TLE from 17 hours ago
0 FLTSATCOM 8 (USA 46)
1 20253U 89077A 26140.97441336 -.00000377 00000-0 00000-0 0 9991
2 20253 12.4292 351.3298 0006197 28.8520 334.9192 1.00268108260299Epoch: 2026-05-20T23:23Z
TLE epoch observation values (Epoch: 2026-05-20T23:23:09.314Z)
Latitude
0.81546°
Longitude
125.57436°
Altitude
35,763.434 km
Speed
3.076 km/s
True Right ascension
23h 39m 57s
True Declination
0° 48' 53"
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
01:08:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,814.754 km
Perigee altitude
35,762.493 km
Semi-major axis
42,166.761 km
Eccentricity
0.00062
Inclination
12.4292°
RAAN
351.3298°
Arg. of periapsis
28.852°
True anomaly
334.88908°
Mean anomaly
334.9192°
Eccentric anomaly
334.90414°
Mean motion
0.25066 °/min
Orbital period
1,436.2 mins
BSTAR
0
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Other satellites on launch #77 in the year 1989 (1989-09-25 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.FLTSATCOM 8 (USA 46) Visibility
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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. |
|---|---|---|---|---|---|---|---|
| FLTSATCOM 8 (USA 46) is likely not visible in the next few days. |
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20253 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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