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, 1.1 m
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 2403U 66077A 26304.94350361 -.00000012 00000-0 -65409-2 0 9992
2 2403 90.3292 278.0180 0005688 309.3211 50.7136 8.59841018538213Epoch: 2026-10-31T22:38Z
TLE epoch observation values (Epoch: 2026-10-31T22:38:38.711Z)
Latitude
-0.00004°
Longitude
-101.88527°
Altitude
3,684.869 km
Speed
6.296 km/s
True Right ascension
18h 32m 04s
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
00:21:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,689.848 km
Perigee altitude
3,678.401 km
Semi-major axis
10,062.262 km
Eccentricity
0.00057
Inclination
90.3292°
RAAN
278.018°
Arg. of periapsis
309.3211°
True anomaly
50.76407°
Mean anomaly
50.7136°
Eccentric anomaly
50.73883°
Mean motion
2.1503 °/min
Orbital period
167.42 mins
BSTAR
-0.0065409
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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. |
|---|---|---|---|---|---|---|---|
| 35 mins | 2026-11-02 08:56:10.123Z | 8.585° NNE | 2026-11-02 09:14:10.123Z | 82.413° E | 46.285° | 2026-11-02 09:31:10.123Z | 150.264° SSE |
| 34 mins | 2026-11-02 11:44:10.123Z | 355.413° N | 2026-11-02 12:00:10.123Z | 289.516° WNW | 54.116° | 2026-11-02 12:18:10.123Z | 216.65° SW |
| 5 mins | 2026-11-02 14:37:10.123Z | 328.235° NNW | 2026-11-02 14:39:10.123Z | 321.673° NNW | 10.869° | 2026-11-02 14:42:10.123Z | 311.836° NW |
| 22 mins | 2026-11-02 19:33:10.123Z | 88.624° E | 2026-11-02 19:43:10.123Z | 53.429° ENE | 20.904° | 2026-11-02 19:55:10.123Z | 12.225° NNE |
| 36 mins | 2026-11-02 22:08:10.123Z | 165.225° S | 2026-11-02 22:25:10.123Z | 86.583° E | 80.857° | 2026-11-02 22:44:10.123Z | 359.48° N |
| 28 mins | 2026-11-03 01:01:10.123Z | 240.616° WSW | 2026-11-03 01:14:10.123Z | 289.21° WNW | 27.373° | 2026-11-03 01:29:10.123Z | 344.632° 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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