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COSMOS 1561, 15000

Orbit data source: Space-Track

COSMOS 1561, 15000 is a payload satellite owned by GUKOS (CIS) in LEO that was launched on Mon, 28 May 1984 UTC via a KOSMOS 11K65M 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/15000?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

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https://www.satcat.com/sats-embedded/15000?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

15000, 1984-052C

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

NPO PM

Mission

Spacecraft

Bus & Motor

STRELA-1 11F625, Unknown motor

Mass

60 kg wet, 60 kg dry

Launch date (UTC)

1984-05-28 (42 years ago)

Launch vehicle

KOSMOS 11K65M

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

POLY, 1.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 COSMOS 1561
1 15000U 84052C   26308.74033424 -.00000022  00000-0 -43689-4 0  9991
2 15000  74.0124 204.6544 0014650  41.0837 348.3765 12.47993190933275

Epoch: 2026-11-04T17:46Z

TLE epoch observation values (Epoch: 2026-11-04T17:46:04.878Z)

Latitude

28.22956°

Longitude

-97.04589°

Altitude

1,464.624 km

Speed

7.138 km/s

True Right ascension

14h 13m 50s

True Declination

28° 05' 58"

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

04:42:18

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,482.237 km

Perigee altitude

1,459.24 km

Semi-major axis

7,848.876 km

Eccentricity

0.00147

Inclination

74.0124°

RAAN

204.6544°

Arg. of periapsis

41.0837°

True anomaly

348.34262°

Mean anomaly

348.3765°

Eccentric anomaly

348.35956°

Mean motion

3.12127 °/min

Orbital period

115.34 mins

BSTAR

-0.000043689

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Other satellites on launch #52 in the year 1984 (1984-05-28 UTC)

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COSMOS 1561 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	2026-11-05 16:48:23.280Z	138.08° SSE	2026-11-05 16:54:23.280Z	89.564° E	24.461°	2026-11-05 17:00:23.280Z	44.245° NE
16 mins	2026-11-05 18:43:23.280Z	209.374° SW	2026-11-05 18:51:23.280Z	308.244° NW	68.672°	2026-11-05 18:59:23.280Z	14.765° NNE
8 mins	2026-11-05 20:47:23.280Z	290.513° WNW	2026-11-05 20:50:23.280Z	313.175° NW	15.951°	2026-11-05 20:55:23.280Z	349.267° N
13 mins	2026-11-06 02:54:23.280Z	3.712° NNE	2026-11-06 03:00:23.280Z	54.16° ENE	28.812°	2026-11-06 03:07:23.280Z	110.798° ESE
16 mins	2026-11-06 04:51:23.280Z	334.636° NNW	2026-11-06 04:59:23.280Z	238.938° WSW	66.231°	2026-11-06 05:07:23.280Z	176.511° S

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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 1561, 15000 on other resources

View COSMOS 1561, 15000 on NASA - NSSDCA Website

View COSMOS 1561, 15000 on Heavens-Above

View COSMOS 1561, 15000 on Keep Track

View COSMOS 1561, 15000 on Celestrak

View COSMOS 1561, 15000 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 1561, 15000

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-11-04T17:46:04.878Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #52 in the year 1984 (1984-05-28 UTC)

COSMOS 1561 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1561, 15000 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago