Key statistics
Satellite AEHF 4 (USA 288) at a glance.
Uptime
2456
Days in orbit
Revolutions
≈ 1.0
Per day
Orbit
GEO
Geostationary Orbit
Inclination
1.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for AEHF 4 (USA 288).
Object identification
Identified? True
Debris? False
Object name: AEHF 4 (USA 288)
International designator: 2018-079A
Object number (NORAD): 43651
Object ID (CCSDS): 43651
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 1436.102 minutes
Inclination: 1.4638 deg
SMA: 42164.835 km
Apoapsis: 35983.487 km
Periapsis: 35589.912 km
RAAN: 347.6512 deg
Eccentricy: 0.0046671
Argument of periapsis: 4.4665 deg
Mean anomaly: 193.0265 deg
Mean motion: 1.00271418 rev/day
Mean motion (dot): -0.00000256 rev/day2
B* drag term: 0.0 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 2:27 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 9:46 p.m. UTC
TLE line 0: 0 AEHF 4 (USA 288)
TLE line 1: 1 43651U 18079A 25188.90705861 -.00000256 00000-0 00000-0 0 9998
TLE line 2: 2 43651 1.4638 347.6512 0046671 4.4665 193.0265 1.00271418 24848
Live tracking on map
Real-time ground track for satellite AEHF 4 (USA 288).
In-orbit conjunctions
There are no conjunctions computed for AEHF 4 (USA 288), at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
This is the fourth satellite in the Advanced Extremely High Frequency (AEHF) system, which is a series of communications satellites operated by the United States Air Force Space Command. It provides global, survivable, protected communications capabilities for strategic command and tactical warfighters operating on ground, sea and air platforms.
AEHF 4 (USA 288) was lifted into orbit during the mission ‘Atlas V 551 | AEHF-4 (USA 288)’, on board a Atlas V 551 space rocket.
The launch took place on Oct. 17, 2018, 4:15 a.m. from Space Launch Complex 41.
For more information about the launch, click the button.
Atlas V 551 | AEHF-4 (USA 288)
Agency: N/A
Status: Launch Successful
Launch date: Oct. 17, 2018, 4:15 a.m. UTC
Rocket: Atlas V 551
Launch pad: Space Launch Complex 41
Location: Cape Canaveral SFS, FL, USA
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Latest news about this satellite
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