NAVSTAR 56 (USA 180), 28474
Orbit data source: Space-Track
NAVSTAR 56 (USA 180), 28474 is a payload satellite owned by USAF SMC (US) in MEO that was launched on Sat, 06 Nov 2004 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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28474 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
LMMS/Sunnyvale
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: 2 days ago
TLE from 2 days ago
0 NAVSTAR 56 (USA 180)
1 28474U 04045A 26153.78951816 -.00000077 00000-0 00000-0 0 9995
2 28474 55.1451 325.4759 0169815 316.0475 6.4312 2.00555416158131Epoch: 2026-06-02T18:56Z
TLE epoch observation values (Epoch: 2026-06-02T18:56:54.369Z)
Latitude
-29.84238°
Longitude
126.45819°
Altitude
19,743.678 km
Speed
3.939 km/s
True Right ascension
20h 07m 46s
True Declination
-29° 48' 07"
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
23:59:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
20,633.98 km
Perigee altitude
19,731.886 km
Semi-major axis
26,561.07 km
Eccentricity
0.01698
Inclination
55.1451°
RAAN
325.4759°
Arg. of periapsis
316.0475°
True anomaly
6.65386°
Mean anomaly
6.4312°
Eccentric anomaly
6.54205°
Mean motion
0.50139 °/min
Orbital period
718.01 mins
BSTAR
0
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Other satellites on launch #45 in the year 2004 (2004-11-06 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 56 (USA 180) 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. |
|---|---|---|---|---|---|---|---|
| 274 mins | 2026-06-04 22:18:53.536Z | 316.668° NNW | 2026-06-05 00:34:53.536Z | 273.924° WNW | 36.888° | 2026-06-05 02:52:53.536Z | 213.597° SW |
| 187 mins | 2026-06-05 07:57:53.536Z | 113.022° SE | 2026-06-05 09:32:53.536Z | 70.601° E | 24.882° | 2026-06-05 11:04:53.536Z | 37.056° NE |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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