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COSMOS 1829, 17584

Orbit data source: Space-Track

COSMOS 1829, 17584 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Fri, 13 Mar 1987 UTC via a TSIKLON-3 launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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 src="https://www.satcat.com/sats-embedded/17584?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/17584?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

17584, 1987-026C

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

NPO PM

Mission

Defense Communications

Bus & Motor

STRELA-3, Unknown motor

Mass

225 kg wet, 225 kg dry

Launch date (UTC)

1987-03-13 (39 years ago)

Launch vehicle

TSIKLON-3

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.8 m

Radar Cross Section

1.257 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 11 hours ago

TLE from 11 hours ago

0 COSMOS 1829
1 17584U 87026C   26052.79388756  .00000030  00000-0  10961-3 0  9999
2 17584  82.5728 306.4076 0001169 110.9873 249.1343 12.62716636794849

Epoch: 2026-02-21T19:03Z

TLE epoch observation values (Epoch: 2026-02-21T19:03:11.885Z)

Latitude

-0.00005°

Longitude

-131.10329°

Altitude

1,414.806 km

Speed

7.153 km/s

True Right ascension

20h 25m 37s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

08:42:19

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,409.982 km

Perigee altitude

1,408.161 km

Semi-major axis

7,787.209 km

Eccentricity

0.00012

Inclination

82.5728°

RAAN

306.4076°

Arg. of periapsis

110.9873°

True anomaly

249.12178°

Mean anomaly

249.1343°

Eccentric anomaly

249.12804°

Mean motion

3.15842 °/min

Orbital period

113.98 mins

BSTAR

0.00010961

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Other satellites on launch #26 in the year 1987 (1987-03-13 UTC)

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COSMOS 1829 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.
12 mins	2026-02-22 16:05:13.054Z	130.687° SE	2026-02-22 16:11:13.054Z	80.646° E	23.468°	2026-02-22 16:17:13.054Z	32.339° NE
15 mins	2026-02-22 17:58:13.054Z	202.039° SSW	2026-02-22 18:05:13.054Z	276.087° WNW	41.73°	2026-02-22 18:13:13.054Z	1.064° NNE
14 mins	2026-02-23 04:00:13.054Z	5.217° NNE	2026-02-23 04:06:13.054Z	65.961° ENE	38.761°	2026-02-23 04:14:13.054Z	152.312° SSE

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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

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out COSMOS 1829, 17584 on other resources

View COSMOS 1829, 17584 on NASA - NSSDCA Website

View COSMOS 1829, 17584 on Heavens-Above

View COSMOS 1829, 17584 on Keep Track

View COSMOS 1829, 17584 on Celestrak

View COSMOS 1829, 17584 on Gunter's Space Page

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

COSMOS 1829, 17584

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2026-02-21T19:03:11.885Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #26 in the year 1987 (1987-03-13 UTC)

COSMOS 1829 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1829, 17584 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 11 hours ago