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LDPE-1, 49818

Orbit data source: Space-Track

LDPE-1, 49818 is a payload satellite owned by AFRL/RV (US) in GEO that was launched on Tue, 07 Dec 2021 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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LDPE-1 details

Identifier	49818, 2021-118B
Orbit	GEO
Last TLE update	7 hours ago
Origin	AFRL/RV (US)
Manufacturer	NGIS
Mission	Operational Defense Technology
Bus & Motor	ESPASTAR, Unknown motor
Mass	~500 kg wet, 500 kg dry
Launch date (UTC)	2021-12-07 (3 years ago)
Launch vehicle	ATLAS V 551
Launch site	Air Force Eastern Test Range (AFETR)
Object type	Payload Rocket body Debris
Shape & HBR	Cyl + 1 Pan, 3.6 m
Radar Cross Section	3.054 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 7 hours ago

0 LDPE-1
1 49818U 21118B   24361.23380043 -.00000228  00000-0  00000-0 0  9995
2 49818   2.8510  85.4250 0000433 286.6024 118.2263  0.99509766 11242

Epoch: 2024-12-26T05:36Z

Definitive object data (Epoch: 2024-12-26T05:36:40.357Z)

Latitude	2.02916°
Longitude	-49.16637°
Altitude	36,001.697 km
Speed	3.067 km/s
True Right ascension	08h 40m 52s
True Declination	2° 01' 38"
Sunlit	Object was in daylight at TLE epoch

Visualization TLE readout

Latitude	1.58964°
Longitude	51.79853°
Altitude	36,002.333 km
Speed	3.067 km/s
Apparent Right ascension	15h 47m 57s
Apparent Declination	-4° 09' 53"
Sunlit	Object is in daylight

Visualization observer readout

Local Sidereal Time	11:43:45
Azimuth	112.724° SE
Elevation	18.886°
Doppler factor	1

Orbital elements

Apogee altitude	36,004.475 km
Perigee altitude	36,000.805 km
Semi-major axis	42,380.777 km
Eccentricity	0.0000433
Inclination	2.851°
RAAN	85.425°
Arg. of periapsis	286.6024°
True anomaly	118.23067°
Mean anomaly	118.2263°
Eccentric anomaly	118.22849°
Mean motion	0.24877 °/min
BSTAR	Unknown
Orbital period	1447.15 mins