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: 19 hours ago
TLE from 19 hours ago
0 OPS 0856
1 02403U 66077A 25309.87565523 -.00000098 00000-0 -49450-1 0 9997
2 02403 90.3338 273.7780 0008271 309.4546 50.5574 8.59842938507262Epoch: 2025-11-05T21:00Z
TLE epoch observation values (Epoch: 2025-11-05T21:00:56.611Z)
Latitude
0.00002°
Longitude
-86.79992°
Altitude
3,683.192 km
Speed
6.297 km/s
True Right ascension
18h 15m 06s
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
11:41:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,692.432 km
Perigee altitude
3,675.787 km
Semi-major axis
10,062.247 km
Eccentricity
0.00083
Inclination
90.3338°
RAAN
273.778°
Arg. of periapsis
309.4546°
True anomaly
50.63064°
Mean anomaly
50.5574°
Eccentric anomaly
50.59402°
Mean motion
2.15031 °/min
Orbital period
167.42 mins
BSTAR
-0.04945
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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. |
|---|---|---|---|---|---|---|---|
| 27 mins | 2025-11-06 19:30:12.089Z | 108.883° ESE | 2025-11-06 19:44:12.089Z | 56.972° ENE | 26.08° | 2025-11-06 19:57:12.089Z | 10.223° NNE |
| 37 mins | 2025-11-06 22:09:12.089Z | 179.637° S | 2025-11-06 22:27:12.089Z | 271.02° WNW | 44.604° | 2025-11-06 22:46:12.089Z | 357.284° N |
| 22 mins | 2025-11-07 01:08:12.089Z | 263.237° W | 2025-11-07 01:18:12.089Z | 298.432° NW | 17.54° | 2025-11-07 01:30:12.089Z | 339.857° N |
| 28 mins | 2025-11-07 07:21:12.089Z | 18.937° NNE | 2025-11-07 07:34:12.089Z | 67.411° ENE | 24.132° | 2025-11-07 07:49:12.089Z | 121.817° SE |
| 36 mins | 2025-11-07 10:06:12.089Z | 0.695° NNE | 2025-11-07 10:24:12.089Z | 262.083° W | 44.725° | 2025-11-07 10:42:12.089Z | 193.367° SSW |
| 22 mins | 2025-11-07 12:55:12.089Z | 344.562° N | 2025-11-07 13:06:12.089Z | 305.527° NW | 20.15° | 2025-11-07 13:17:12.089Z | 267.42° W |
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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