OPS 0856, 2403
Orbit data source: Space-Track
OPS 0856, 2403 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Fri, 19 Aug 1966 UTC via an ATLAS SLV-3 AGENA D launch vehicle from the Air Force Western Test Range (AFWTR). 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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2403 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
LMSC
Mission
Spacecraft
Bus & Motor
MIDAS, Unknown motor
Mass
~2,000 kg wet, ~1,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 OPS 0856
1 02403U 66077A 25292.19228282 -.00000028 00000-0 -14446-1 0 9991
2 02403 90.3306 273.5727 0008467 327.0613 32.9711 8.59845604505745Epoch: 2025-10-19T04:36Z
TLE epoch observation values (Epoch: 2025-10-19T04:36:53.235Z)
Latitude
0.00003°
Longitude
176.43841°
Altitude
3,681.309 km
Speed
6.298 km/s
True Right ascension
18h 14m 17s
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
10:10:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,692.608 km
Perigee altitude
3,675.569 km
Semi-major axis
10,062.226 km
Eccentricity
0.00085
Inclination
90.3306°
RAAN
273.5727°
Arg. of periapsis
327.0613°
True anomaly
33.02395°
Mean anomaly
32.9711°
Eccentric anomaly
32.99752°
Mean motion
2.15031 °/min
Orbital period
167.42 mins
BSTAR
-0.014446
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Other satellites on launch #77 in the year 1966 (1966-08-19 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.OPS 0856 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. |
|---|---|---|---|---|---|---|---|
| 33 mins | 2025-10-19 21:26:30.898Z | 132.327° SE | 2025-10-19 21:42:30.898Z | 68.882° E | 35.286° | 2025-10-19 21:59:30.898Z | 4.42° NNE |
| 35 mins | 2025-10-20 00:11:30.898Z | 201.475° SSW | 2025-10-20 00:28:30.898Z | 279.568° WNW | 39.614° | 2025-10-20 00:46:30.898Z | 353.604° N |
| 33 mins | 2025-10-20 09:20:30.898Z | 11.493° NNE | 2025-10-20 09:36:30.898Z | 76.53° E | 34.191° | 2025-10-20 09:53:30.898Z | 145.58° SSE |
| 34 mins | 2025-10-20 12:07:30.898Z | 356.009° N | 2025-10-20 12:23:30.898Z | 288.558° WNW | 40.302° | 2025-10-20 12:41:30.898Z | 213.237° SW |
| 9 mins | 2025-10-20 14:59:30.898Z | 331.146° NNW | 2025-10-20 15:03:30.898Z | 317.783° NNW | 11.958° | 2025-10-20 15:08:30.898Z | 301.282° NW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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