NAVSTAR 71 (USA 256), 40105
Orbit data source: Space-Track
NAVSTAR 71 (USA 256), 40105 is a payload satellite owned by USAF SMC (US) in MEO that was launched on Sat, 02 Aug 2014 UTC via an ATLAS V 401 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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40105 intel report (Beta)
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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: 11 hours ago
TLE from 11 hours ago
0 NAVSTAR 71 (USA 256)
1 40105U 14045A 26062.35011831 .00000016 00000-0 00000+0 0 9998
2 40105 55.2804 92.6803 0031529 120.5063 239.8766 2.00551389 83950Epoch: 2026-03-03T08:24Z
TLE epoch observation values (Epoch: 2026-03-03T08:24:10.221Z)
Latitude
0.00005°
Longitude
165.51793°
Altitude
20,225.776 km
Speed
3.868 km/s
True Right ascension
06h 10m 45s
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
23:31:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
20,267.029 km
Perigee altitude
20,099.538 km
Semi-major axis
26,561.42 km
Eccentricity
0.00315
Inclination
55.2804°
RAAN
92.6803°
Arg. of periapsis
120.5063°
True anomaly
239.56472°
Mean anomaly
239.8766°
Eccentric anomaly
239.7206°
Mean motion
0.50138 °/min
Orbital period
718.02 mins
BSTAR
0
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Other satellites on launch #45 in the year 2014 (2014-08-02 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 71 (USA 256) 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. |
|---|---|---|---|---|---|---|---|
| 342 mins | 2026-03-04 09:39:31.462Z | 292.226° WNW | 2026-03-04 12:43:31.462Z | 247.935° W | 44.702° | 2026-03-04 15:21:31.462Z | 175.494° S |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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