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 25352.22291365 -.00000010 00000-0 -59309-2 0 9993
2 02403 90.3412 274.2797 0007730 266.5283 93.4684 8.59838091510907Epoch: 2025-12-18T05:20Z
TLE epoch observation values (Epoch: 2025-12-18T05:20:59.739Z)
Latitude
-0.00007°
Longitude
106.94928°
Altitude
3,688.992 km
Speed
6.293 km/s
True Right ascension
18h 17m 07s
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
08:25:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,691.926 km
Perigee altitude
3,676.369 km
Semi-major axis
10,062.284 km
Eccentricity
0.00077
Inclination
90.3412°
RAAN
274.2797°
Arg. of periapsis
266.5283°
True anomaly
93.55681°
Mean anomaly
93.4684°
Eccentric anomaly
93.51261°
Mean motion
2.1503 °/min
Orbital period
167.42 mins
BSTAR
-0.0059309
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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. |
|---|---|---|---|---|---|---|---|
| 24 mins | 2025-12-19 10:03:51.809Z | 348.463° N | 2025-12-19 10:15:51.809Z | 307.011° NW | 21.372° | 2025-12-19 10:27:51.809Z | 264.389° W |
| 33 mins | 2025-12-19 17:42:51.809Z | 137.6° SSE | 2025-12-19 17:58:51.809Z | 71.857° E | 37.561° | 2025-12-19 18:15:51.809Z | 4.202° NNE |
| 34 mins | 2025-12-19 20:28:51.809Z | 207.65° SW | 2025-12-19 20:44:51.809Z | 276.142° WNW | 37.496° | 2025-12-19 21:02:51.809Z | 351.911° N |
| 35 mins | 2025-12-20 05:36:51.809Z | 9.46° NNE | 2025-12-20 05:53:51.809Z | 80.405° E | 36.644° | 2025-12-20 06:11:51.809Z | 152.996° SSE |
| 34 mins | 2025-12-20 08:23:51.809Z | 355.459° N | 2025-12-20 08:39:51.809Z | 291.828° WNW | 38.323° | 2025-12-20 08:57:51.809Z | 218.541° SW |
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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