NAVSTAR 57 (USA 183), 28874
Orbit data source: Space-Track
NAVSTAR 57 (USA 183), 28874 is a payload satellite owned by USAF SMC (US) in MEO that was launched on Mon, 26 Sep 2005 UTC via a DELTA 7925-9.5 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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28874 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
LM/Valley Forge
Mission
Operational Defense Navigation
Bus & Motor
SERIES 4000, STAR 37XFP
Mass
2,032 kg wet, 910 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 9.7 m
Radar Cross Section
13.539 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 NAVSTAR 57 (USA 183)
1 28874U 05038A 26165.34905039 -.00000025 00000-0 00000-0 0 9996
2 28874 54.8804 273.2921 0127837 296.1336 56.1489 2.00565778151778Epoch: 2026-06-14T08:22Z
TLE epoch observation values (Epoch: 2026-06-14T08:22:37.953Z)
Latitude
-5.33298°
Longitude
-118.78688°
Altitude
19,996.525 km
Speed
3.901 km/s
True Right ascension
17h 58m 05s
True Declination
-5° 19' 28"
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
19:28:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
20,521.566 km
Perigee altitude
19,842.492 km
Semi-major axis
26,560.166 km
Eccentricity
0.01278
Inclination
54.8804°
RAAN
273.2921°
Arg. of periapsis
296.1336°
True anomaly
57.37631°
Mean anomaly
56.1489°
Eccentric anomaly
56.76152°
Mean motion
0.50141 °/min
Orbital period
717.97 mins
BSTAR
0
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Other satellites on launch #38 in the year 2005 (2005-09-26 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 57 (USA 183) 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. |
|---|---|---|---|---|---|---|---|
| 296 mins | 2026-06-15 08:54:31.846Z | 202.893° SW | 2026-06-15 10:17:31.846Z | 303.92° NW | 44.971° | 2026-06-15 13:50:31.846Z | 85.883° E |
| 85 mins | 2026-06-16 07:29:31.846Z | 196.738° SSW | 2026-06-16 08:54:31.846Z | 203.514° SW | 37.734° | 2026-06-16 08:54:31.846Z | 203.514° SW |
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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