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NAVSTAR 70 (USA 251), 39741

Orbit data source: Space-Track

NAVSTAR 70 (USA 251), 39741 is a payload satellite owned by USAF SMC (US) in MEO that was launched on Sat, 17 May 2014 UTC via a DELTA 4M+(4,2) 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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NAVSTAR 70 (USA 251) details

Identifier	39741, 2014-026A
Orbit	MEO
Last TLE update	13 hours ago
Origin	USAF SMC (US)
Manufacturer	Boeing/ES
Mission	Operational Defense Navigation
Bus & Motor	GPS IIF, AOCS
Mass	1,630 kg wet, ~1,500 kg dry
Launch date (UTC)	2014-05-17 (11 years ago)
Launch vehicle	DELTA 4M+(4,2)
Launch site	Air Force Eastern Test Range (AFETR)
Object type	Payload Rocket body Debris
Shape & HBR	Box + 2 Pan, Unknown HBR
Radar Cross Section	13.960 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 13 hours ago

0 NAVSTAR 70 (USA 251)
1 39741U 14026A   24360.99816341 -.00000075  00000-0  00000-0 0  9996
2 39741  56.6880 352.4322 0035776 314.9524  44.7782  2.00554811 77749

Epoch: 2024-12-25T23:57Z

Definitive object data (Epoch: 2024-12-25T23:57:21.318Z)

Latitude	-0.00008°
Longitude	-101.89415°
Altitude	20,116.163 km
Speed	3.884 km/s
True Right ascension	23h 29m 42s
True Declination	0° 00' 00"
Sunlit	Object was in daylight at TLE epoch

Visualization TLE readout

Latitude	25.01641°
Longitude	-84.0744°
Altitude	20,159.776 km
Speed	3.878 km/s
Apparent Right ascension	00h 36m 59s
Apparent Declination	13° 51' 18"
Sunlit	Object is in daylight

Visualization observer readout

Local Sidereal Time	12:17:16
Azimuth	354.081° N
Elevation	-36.034°
Doppler factor	1

Orbital elements

Apogee altitude	20,277.949 km
Perigee altitude	20,087.9 km
Semi-major axis	26,561.062 km
Eccentricity	0.0035776
Inclination	56.688°
RAAN	352.4322°
Arg. of periapsis	314.9524°
True anomaly	45.06788°
Mean anomaly	44.7782°
Eccentric anomaly	44.92295°
Mean motion	0.50139 °/min
BSTAR	Unknown
Orbital period	718.01 mins