OPS 9431 (DSCS 2-1), 5587
Orbit data source: Space-Track
OPS 9431 (DSCS 2-1), 5587 is an American payload satellite in GEO that was launched on Wed, 03 Nov 1971 UTC via a TITAN IIIC launch vehicle from the Air Force Eastern Test Range (AFETR). 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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5587 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
TRW
Mission
Non-operational spacecraft
Bus & Motor
DSCS II, Unknown motor
Mass
526 kg wet, ~500 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: 7 hours ago
TLE from 7 hours ago
0 OPS 9431 (DSCS 2-1)
1 5587U 71095A 26092.16850332 -.00000137 00000-0 00000+0 0 9995
2 5587 1.7816 256.5824 0005473 16.2885 239.6275 1.00272201121251Epoch: 2026-04-02T04:02Z
TLE epoch observation values (Epoch: 2026-04-02T04:02:38.686Z)
Latitude
-1.74878°
Longitude
-98.72957°
Altitude
35,797.796 km
Speed
3.074 km/s
True Right ascension
10h 09m 48s
True Declination
-1° 44' 49"
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
16:36:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,810.624 km
Perigee altitude
35,764.47 km
Semi-major axis
42,165.684 km
Eccentricity
0.00055
Inclination
1.7816°
RAAN
256.5824°
Arg. of periapsis
16.2885°
True anomaly
239.57341°
Mean anomaly
239.6275°
Eccentric anomaly
239.60045°
Mean motion
0.25067 °/min
Orbital period
1,436.14 mins
BSTAR
0
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Other satellites on launch #95 in the year 1971 (1971-11-03 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 9431 (DSCS 2-1) 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2026-04-02 10:54:12.369Z | 170.037° S | 2026-04-02 17:00:12.369Z | 169.527° S | 35.42° | 2026-04-03 10:54:12.369Z | 170.032° S |
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5587 neighbors
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Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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