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: 1 day ago
TLE from 1 day ago
0 OPS 0856
1 02403U 66077A 26035.03818976 .00000038 00000-0 17914-1 0 9997
2 02403 90.3363 274.8549 0007330 214.7189 145.3185 8.59839102515013Epoch: 2026-02-04T00:54Z
TLE epoch observation values (Epoch: 2026-02-04T00:54:59.595Z)
Latitude
0.00001°
Longitude
126.89608°
Altitude
3,694.576 km
Speed
6.289 km/s
True Right ascension
18h 19m 25s
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
05:53:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,691.515 km
Perigee altitude
3,676.764 km
Semi-major axis
10,062.277 km
Eccentricity
0.00073
Inclination
90.3363°
RAAN
274.8549°
Arg. of periapsis
214.7189°
True anomaly
145.36626°
Mean anomaly
145.3185°
Eccentric anomaly
145.34238°
Mean motion
2.1503 °/min
Orbital period
167.42 mins
BSTAR
0.017914
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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 | 2026-02-05 05:37:06.636Z | 354.957° N | 2026-02-05 05:53:06.636Z | 294.189° NW | 35.71° | 2026-02-05 06:10:06.636Z | 225.92° WSW |
| 25 mins | 2026-02-05 13:24:06.636Z | 100.224° ESE | 2026-02-05 13:36:06.636Z | 56.697° ENE | 23.407° | 2026-02-05 13:49:06.636Z | 10.76° NNE |
| 37 mins | 2026-02-05 16:01:06.636Z | 173.739° S | 2026-02-05 16:19:06.636Z | 297.471° NW | 44.981° | 2026-02-05 16:38:06.636Z | 358.231° N |
| 25 mins | 2026-02-05 18:57:06.636Z | 251.818° W | 2026-02-05 19:09:06.636Z | 294.74° NW | 20.478° | 2026-02-05 19:22:06.636Z | 341.057° N |
| 25 mins | 2026-02-06 01:13:06.636Z | 20.334° NNE | 2026-02-06 01:25:06.636Z | 63.586° ENE | 21.082° | 2026-02-06 01:38:06.636Z | 110.626° ESE |
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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