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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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Iframe URL

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

14 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 14 hours ago

0 OPS 9431 (DSCS 2-1)
1 05587U 71095A   25131.64477965 -.00000046  00000-0  00000-0 0  9998
2 05587   2.6148 265.3426 0003613 352.1036  94.9039  1.00281148117995

Epoch: 2025-05-11T15:28Z

Definitive object data (Epoch: 2025-05-11T15:28:28.961Z)

Latitude

2.63932°

Longitude

-109.41847°

Altitude

35,784.54 km

Speed

3.075 km/s

True Right ascension

23h 29m 29s

True Declination

2° 38' 12"

Sunlit

Object was in daylight at TLE epoch

Visualization TLE readout

Latitude

-2.47849°

Longitude

93.84664°

Altitude

35,776.54 km

Speed

3.075 km/s

Apparent Right ascension

13h 00m 15s

Apparent Declination

-8° 59' 32"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

13:19:53

Azimuth

186.417° SSW

Elevation

40.881°

Doppler factor

Orbital elements

Apogee altitude

35,800.271 km

Perigee altitude

35,769.804 km

Semi-major axis

42,163.175 km

Eccentricity

0.0003613

Inclination

2.6148°

RAAN

265.3426°

Arg. of periapsis

352.1036°

True anomaly

94.94515°

Mean anomaly

94.9039°

Eccentric anomaly

94.92452°

Mean motion

0.25069 °/min

BSTAR

Unknown

Orbital period

1436.02 mins

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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	2025-05-12 04:59:28.305Z	186.415° SSW	2025-05-12 15:42:28.305Z	187.013° SSW	35.986°	2025-05-13 04:59:28.305Z	186.367° 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.