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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). Payloads include a variety of satellites, spacecraft, and rockets 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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AEHF 4 (USA 288) details

Identifier	43651, 2018-079A
Orbit	GEO
Last TLE update	7 hours ago
Origin	USAF MCSW (US)
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)	2018-10-17 (6 years ago)
Launch vehicle	ATLAS V 551
Launch site	Air Force Eastern Test Range (AFETR)
Object type	Payload Rocket body Debris
Shape & HBR	Box + 2 Pan, 27 m
Radar Cross Section	35.027 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 7 hours ago

0 AEHF 4 (USA 288)
1 43651U 18079A   25025.52527177 -.00000252  00000-0  00000-0 0  9994
2 43651   1.6036 335.3826 0051124   6.3775 264.8057  1.00265686 23201

Epoch: 2025-01-25T12:36Z

Definitive object data (Epoch: 2025-01-25T12:36:23.48Z)

Latitude	-1.61001°
Longitude	-68.17683°
Altitude	35,807.543 km
Speed	3.073 km/s
True Right ascension	16h 23m 58s
True Declination	-1° 36' 30"
Sunlit	Object was in daylight at TLE epoch

Visualization TLE readout

Latitude	0.54999°
Longitude	41.93381°
Altitude	35,579.014 km
Speed	3.09 km/s
Apparent Right ascension	00h 02m 23s
Apparent Declination	-5° 29' 11"
Sunlit	Object is in daylight

Visualization observer readout

Local Sidereal Time	21:13:47
Azimuth	129.304° SE
Elevation	30.309°
Doppler factor	1

Orbital elements

Apogee altitude	36,004.951 km
Perigee altitude	35,573.797 km
Semi-major axis	42,167.511 km
Eccentricity	0.0051124
Inclination	1.6036°
RAAN	335.3826°
Arg. of periapsis	6.3775°
True anomaly	264.22262°
Mean anomaly	264.8057°
Eccentric anomaly	264.51412°
Mean motion	0.25065 °/min
BSTAR	Unknown
Orbital period	1436.24 mins