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
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 26194.18931352 .00000001 00000-0 -12890-3 0 9994
2 02403 90.3400 276.7249 0007113 62.1495 298.0077 8.59840934528696Epoch: 2026-07-13T04:32Z
TLE epoch observation values (Epoch: 2026-07-13T04:32:36.688Z)
Latitude
0.00002°
Longitude
-82.50536°
Altitude
3,685.135 km
Speed
6.295 km/s
True Right ascension
18h 26m 53s
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
23:58:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,691.283 km
Perigee altitude
3,676.968 km
Semi-major axis
10,062.262 km
Eccentricity
0.00071
Inclination
90.34°
RAAN
276.7249°
Arg. of periapsis
62.1495°
True anomaly
297.93571°
Mean anomaly
298.0077°
Eccentric anomaly
297.97171°
Mean motion
2.1503 °/min
Orbital period
167.42 mins
BSTAR
-0.0001289
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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. |
|---|---|---|---|---|---|---|---|
| 26 mins | 2026-07-14 14:52:25.239Z | 18.925° NNE | 2026-07-14 15:05:25.239Z | 65.429° ENE | 20.6° | 2026-07-14 15:18:25.239Z | 111.3° ESE |
| 37 mins | 2026-07-14 17:37:25.239Z | 2.025° NNE | 2026-07-14 17:55:25.239Z | 62.641° ENE | 44.989° | 2026-07-14 18:14:25.239Z | 186.707° SSW |
| 25 mins | 2026-07-14 20:26:25.239Z | 346.708° N | 2026-07-14 20:38:25.239Z | 303.143° NW | 23.211° | 2026-07-14 20:51:25.239Z | 257.307° W |
| 32 mins | 2026-07-15 04:05:25.239Z | 132.872° SE | 2026-07-15 04:21:25.239Z | 66.011° ENE | 35.852° | 2026-07-15 04:37:25.239Z | 4.999° NNE |
| 35 mins | 2026-07-15 06:49:25.239Z | 201.978° SSW | 2026-07-15 07:06:25.239Z | 274.073° WNW | 39.091° | 2026-07-15 07:24:25.239Z | 352.493° N |
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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