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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40534 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Boeing/ES
Mission
Operational Defense Navigation
Bus & Motor
GPS IIF, AOCS
Mass
1,630 kg wet, ~1,500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 9.0 m
Radar Cross Section
13.960 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 22 hours ago
TLE from 22 hours ago
0 NAVSTAR 73 (USA 260)
1 40534U 15013A 25309.69463995 .00000034 00000-0 00000-0 0 9993
2 40534 53.2053 213.4241 0105235 37.5133 323.2785 2.00564678 77340Epoch: 2025-11-05T16:40Z
TLE epoch observation values (Epoch: 2025-11-05T16:40:16.891Z)
Latitude
0.00003°
Longitude
-81.813°
Altitude
19,959.301 km
Speed
3.907 km/s
True Right ascension
14h 13m 41s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
10:29:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
20,461.703 km
Perigee altitude
19,902.688 km
Semi-major axis
26,560.332 km
Eccentricity
0.01052
Inclination
53.2053°
RAAN
213.4241°
Arg. of periapsis
37.5133°
True anomaly
322.5498°
Mean anomaly
323.2785°
Eccentric anomaly
322.91492°
Mean motion
0.50141 °/min
Orbital period
717.98 mins
BSTAR
0
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Other satellites on launch #13 in the year 2015 (2015-03-25 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.NAVSTAR 73 (USA 260) Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 287 mins | 2025-11-06 15:37:16.281Z | 160.837° S | 2025-11-06 18:01:16.281Z | 94.221° ESE | 39.749° | 2025-11-06 20:24:16.281Z | 49.316° ENE |
| 140 mins | 2025-11-07 07:45:16.281Z | 319.246° NNW | 2025-11-07 08:52:16.281Z | 293.288° NW | 18.454° | 2025-11-07 10:05:16.281Z | 262.768° W |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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