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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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https://www.satcat.com/sats-embedded/5587?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

5587, 1971-095A

Orbit

GEO

Last TLE update

17 hours ago

Origin

USAF Space and Missile Systems Organization (US)

Manufacturer

TRW

Mission

Non-operational Defense Communications

Bus & Motor

DSCS II, Unknown motor

Mass

526 kg wet, ~500 kg dry

Launch date (UTC)

1971-11-03 (54 years ago)

Launch vehicle

TITAN IIIC

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, Unknown HBR

Radar Cross Section

10.695 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 17 hours ago

0 OPS 9431 (DSCS 2-1)
1 05587U 71095A   25180.61855163 -.00000075  00000-0  00000-0 0  9991
2 05587   2.4898 264.1699 0003791 336.1009 152.7967  1.00283366118485

Epoch: 2025-06-29T14:50Z

TLE epoch observation values (Epoch: 2025-06-29T14:50:42.86Z)

Latitude

1.94538°

Longitude

-107.48939°

Altitude

35,796.811 km

Speed

3.074 km/s

True Right ascension

02h 12m 31s

True Declination

1° 56' 36"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

0.93303°

Longitude

146.05615°

Altitude

35,771.639 km

Speed

3.076 km/s

Apparent Right ascension

19h 05m 26s

Apparent Declination

-5° 11' 33"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

19:16:12

Azimuth

183.779° SSW

Elevation

44.823°

Doppler factor

Orbital elements

Apogee altitude

35,800.4 km

Perigee altitude

35,768.432 km

Semi-major axis

42,162.553 km

Eccentricity

0.00038

Inclination

2.4898°

RAAN

264.1699°

Arg. of periapsis

336.1009°

True anomaly

Unknown

Mean anomaly

152.7967°

Eccentric anomaly

Unknown

Mean motion

0.2507 °/min

Orbital period

1,435.98 mins

BSTAR

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5587 neighbors

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Other satellites on launch #95 in the year 1971 (1971-11-03 UTC)

OPS 9432 (DSCS 2-2), 5588

TITAN 3C TRANSTAGE R/B, 5589

OPS 9431 (DSCS 2-1) Visibility forecast

Observer location: undefined°, undefined°

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	2025-06-30 07:42:09.187Z	183.777° SSW	2025-06-30 12:21:09.187Z	183.845° SSW	35.977°	2025-07-01 07:42:09.187Z	183.718° SSW

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Check out OPS 9431 (DSCS 2-1), 5587 on other resources

View OPS 9431 (DSCS 2-1), 5587 on NASA - NSSDCA Website

View OPS 9431 (DSCS 2-1), 5587 on Heavens-Above

View OPS 9431 (DSCS 2-1), 5587 on Keep Track

View OPS 9431 (DSCS 2-1), 5587 on Celestrak

View OPS 9431 (DSCS 2-1), 5587 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.