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NAVSTAR 73 (USA 260), 40534

Orbit data source: Space-Track

NAVSTAR 73 (USA 260), 40534 is a payload satellite owned by USAF SMC (US) in MEO that was launched on Wed, 25 Mar 2015 UTC via a DELTA 4M+(4,2) 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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Identifier
40534, 2015-013A
Orbit
MEO
Last TLE update
1 day ago
Origin
Manufacturer
Boeing/ES
Mission
Operational Defense Navigation
Bus & Motor
GPS IIF, AOCS
Mass
1,630 kg wet, ~1,500 kg dry
Launch date (UTC)
2015-03-25 (10 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, 18 m
Radar Cross Section
13.960 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 1 day ago
0 NAVSTAR 73 (USA 260)
1 40534U 15013A   25108.77579669  .00000009  00000-0  00000+0 0  9996
2 40534  53.2513 221.7387 0097666  34.7428 325.9003  2.00554480 73739
Epoch: 2025-04-18T18:37Z
Definitive object data (Epoch: 2025-04-18T18:37:08.834Z)
Latitude
-0.00003°
Longitude
95.31345°
Altitude
19,969.176 km
Speed
3.905 km/s
True Right ascension
14h 46m 54s
True Declination
0° 00' 00"
Sunlit
Object was in daylight at TLE epoch
Visualization TLE readout
Latitude
51.20316°
Longitude
-152.64656°
Altitude
20,094.354 km
Speed
3.889 km/s
Apparent Right ascension
21h 12m 32s
Apparent Declination
42° 36' 22"
Sunlit
Object is in daylight
Visualization observer readout
Local Sidereal Time
04:48:56
Azimuth
316.662° NNW
Elevation
11.764°
Doppler factor
1
Orbital elements
Apogee altitude
20,442.507 km
Perigee altitude
19,923.681 km
Semi-major axis
26,561.231 km
Eccentricity
0.0097666
Inclination
53.2513°
RAAN
221.7387°
Arg. of periapsis
34.7428°
True anomaly
325.26646°
Mean anomaly
325.9003°
Eccentric anomaly
325.58402°
Mean motion
0.50138 °/min
BSTAR
Unknown
Orbital period
718.01 mins
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NAVSTAR 73 (USA 260) Visibility forecast

Observer location: undefined°, undefined°

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.
116 mins2025-04-19 21:56:24.280Z316.645° NNW2025-04-19 22:49:24.280Z295.621° NW16.537°2025-04-19 23:52:24.280Z269.359° W
293 mins2025-04-20 05:31:24.280Z163.799° S2025-04-20 07:56:24.280Z96.415° ESE40.64°2025-04-20 10:24:24.280Z50.985° ENE
10 mins2025-04-20 21:46:24.280Z318.601° NNW2025-04-20 21:56:24.280Z315.266° NNW12.247°2025-04-20 21:56:24.280Z315.266° NNW
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