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: 20 hours ago
TLE from 20 hours ago
0 OPS 0856
1 02403U 66077A 26033.06043012 .00000041 00000-0 19776-1 0 9991
2 02403 90.3369 274.8313 0007338 216.8872 143.1476 8.59838956514843Epoch: 2026-02-02T01:27Z
TLE epoch observation values (Epoch: 2026-02-02T01:27:01.162Z)
Latitude
0.00004°
Longitude
120.81532°
Altitude
3,694.421 km
Speed
6.29 km/s
True Right ascension
18h 19m 19s
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
22:56:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,691.524 km
Perigee altitude
3,676.757 km
Semi-major axis
10,062.278 km
Eccentricity
0.00073
Inclination
90.3369°
RAAN
274.8313°
Arg. of periapsis
216.8872°
True anomaly
143.19799°
Mean anomaly
143.1476°
Eccentric anomaly
143.1728°
Mean motion
2.1503 °/min
Orbital period
167.42 mins
BSTAR
0.019776
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-02-03 00:40:17.220Z | 31.378° NE | 2026-02-03 00:46:17.220Z | 51.283° ENE | 12.118° | 2026-02-03 00:53:17.220Z | 74.613° E |
| 36 mins | 2026-02-03 03:22:17.220Z | 5.816° NNE | 2026-02-03 03:40:17.220Z | 90.367° ESE | 42.371° | 2026-02-03 03:58:17.220Z | 168.98° S |
| 30 mins | 2026-02-03 06:10:17.220Z | 351.286° N | 2026-02-03 06:24:17.220Z | 297.843° NW | 31.472° | 2026-02-03 06:40:17.220Z | 236.445° WSW |
| 28 mins | 2026-02-03 13:53:17.220Z | 112.696° SE | 2026-02-03 14:07:17.220Z | 59.858° ENE | 27.875° | 2026-02-03 14:21:17.220Z | 8.922° NNE |
| 36 mins | 2026-02-03 16:33:17.220Z | 183.623° SSW | 2026-02-03 16:51:17.220Z | 279.442° WNW | 44.065° | 2026-02-03 17:09:17.220Z | 356.214° N |
| 20 mins | 2026-02-03 19:33:17.220Z | 269° W | 2026-02-03 19:42:17.220Z | 299.904° NW | 15.75° | 2026-02-03 19:53:17.220Z | 337.414° NNW |
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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