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: 2 days ago
TLE from 2 days ago
0 OPS 0856
1 02403U 66077A 25304.87311500 -.00000042 00000-0 -21394-1 0 9992
2 02403 90.3329 273.7198 0008365 314.1224 45.8940 8.59844399506834Epoch: 2025-10-31T20:57Z
TLE epoch observation values (Epoch: 2025-10-31T20:57:17.135Z)
Latitude
0.00005°
Longitude
-81.0129°
Altitude
3,682.61 km
Speed
6.297 km/s
True Right ascension
18h 14m 52s
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
10:19:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,692.515 km
Perigee altitude
3,675.681 km
Semi-major axis
10,062.235 km
Eccentricity
0.00084
Inclination
90.3329°
RAAN
273.7198°
Arg. of periapsis
314.1224°
True anomaly
45.96288°
Mean anomaly
45.894°
Eccentric anomaly
45.92843°
Mean motion
2.15031 °/min
Orbital period
167.42 mins
BSTAR
-0.021394
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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. |
|---|---|---|---|---|---|---|---|
| 33 mins | 2025-11-02 20:29:13.564Z | 132.339° SE | 2025-11-02 20:46:13.564Z | 65.573° ENE | 34.87° | 2025-11-02 21:02:13.564Z | 5.258° NNE |
| 35 mins | 2025-11-02 23:14:13.564Z | 199.874° SSW | 2025-11-02 23:31:13.564Z | 274.747° WNW | 39.981° | 2025-11-02 23:49:13.564Z | 353.065° N |
| 34 mins | 2025-11-03 08:23:13.564Z | 10.658° NNE | 2025-11-03 08:40:13.564Z | 79.583° E | 33.754° | 2025-11-03 08:57:13.564Z | 145.651° SSE |
| 35 mins | 2025-11-03 11:10:13.564Z | 356.701° N | 2025-11-03 11:27:13.564Z | 283.685° WNW | 40.618° | 2025-11-03 11:45:13.564Z | 211.908° SW |
| 10 mins | 2025-11-03 14:02:13.564Z | 332.871° NNW | 2025-11-03 14:06:13.564Z | 319.525° NNW | 12.3° | 2025-11-03 14:12:13.564Z | 299.598° NW |
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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