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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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
CONE + CYL, 1.5 m
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 26253.17290134 .00000003 00000-0 66430-3 0 9995
2 02403 90.3289 277.4231 0006191 2.3982 357.6899 8.59841157533768Epoch: 2026-09-10T04:08Z
TLE epoch observation values (Epoch: 2026-09-10T04:08:58.675Z)
Latitude
0.00002°
Longitude
-134.0358°
Altitude
3,682.265 km
Speed
6.297 km/s
True Right ascension
18h 29m 41s
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
15:30:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,690.353 km
Perigee altitude
3,677.894 km
Semi-major axis
10,062.26 km
Eccentricity
0.00062
Inclination
90.3289°
RAAN
277.4231°
Arg. of periapsis
2.3982°
True anomaly
357.68704°
Mean anomaly
357.6899°
Eccentric anomaly
357.68847°
Mean motion
2.1503 °/min
Orbital period
167.42 mins
BSTAR
0.0006643
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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. |
|---|---|---|---|---|---|---|---|
| 30 mins | 2026-09-10 23:48:06.423Z | 119.774° SE | 2026-09-11 00:03:06.423Z | 64.039° ENE | 35.168° | 2026-09-11 00:18:06.423Z | 7.942° NNE |
| 36 mins | 2026-09-11 02:30:06.423Z | 188.31° SSW | 2026-09-11 02:47:06.423Z | 263.625° W | 69.804° | 2026-09-11 03:06:06.423Z | 355.542° N |
| 16 mins | 2026-09-11 05:33:06.423Z | 280.393° WNW | 2026-09-11 05:40:06.423Z | 304.182° NW | 14.031° | 2026-09-11 05:49:06.423Z | 334.307° NNW |
| 31 mins | 2026-09-11 11:40:06.423Z | 13.548° NNE | 2026-09-11 11:56:06.423Z | 75.041° E | 32.66° | 2026-09-11 12:11:06.423Z | 131.378° SE |
| 35 mins | 2026-09-11 14:27:06.423Z | 358.748° N | 2026-09-11 14:44:06.423Z | 279.247° WNW | 71.855° | 2026-09-11 15:02:06.423Z | 201.531° SSW |
| 18 mins | 2026-09-11 17:16:06.423Z | 342.072° N | 2026-09-11 17:25:06.423Z | 311.222° NW | 17.341° | 2026-09-11 17:34:06.423Z | 280.487° WNW |
| 12 mins | 2026-09-11 22:23:06.423Z | 62.727° ENE | 2026-09-11 22:29:06.423Z | 42.479° NE | 13.573° | 2026-09-11 22:35:06.423Z | 22.443° NNE |
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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