AEHF 4 (USA 288), 43651
Orbit data source: Space-Track
AEHF 4 (USA 288), 43651 is a payload satellite owned by USAF MCSW (US) in GEO that was launched on Wed, 17 Oct 2018 UTC via an ATLAS V 551 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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43651 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
LMSS
Mission
Operational Defense Communications
Bus & Motor
A2100M, BT-4/AJ-EP?
Mass
6,200 kg wet, ~4,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 13.5 m
Radar Cross Section
35.027 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 AEHF 4 (USA 288)
1 43651U 18079A 26318.35895095 -.00000263 00000-0 00000+0 0 9999
2 43651 1.4348 3.3839 0069897 353.7382 118.0654 1.00270118 29801Epoch: 2026-11-14T08:36Z
TLE epoch observation values (Epoch: 2026-11-14T08:36:53.362Z)
Latitude
1.32549°
Longitude
-66.81612°
Altitude
35,925.113 km
Speed
3.065 km/s
True Right ascension
07h 43m 29s
True Declination
1° 19' 27"
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
13:56:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
36,082.861 km
Perigee altitude
35,493.402 km
Semi-major axis
42,166.269 km
Eccentricity
0.00699
Inclination
1.4348°
RAAN
3.3839°
Arg. of periapsis
353.7382°
True anomaly
118.76927°
Mean anomaly
118.0654°
Eccentric anomaly
118.41762°
Mean motion
0.25067 °/min
Orbital period
1,436.17 mins
BSTAR
0
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Other satellites on launch #79 in the year 2018 (2018-10-17 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.AEHF 4 (USA 288) 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 | 2026-11-14 17:21:42.165Z | 131.494° SE | 2026-11-15 07:39:42.165Z | 127.93° SE | 30.663° | 2026-11-15 17:21:42.165Z | 131.514° SE |
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43651 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
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