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COSMOS 1559, 14998

Orbit data source: Space-Track

COSMOS 1559, 14998 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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https://www.satcat.com/sats-embedded/14998?theme=dark&initialShowStats=false

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Identifier

14998, 1984-052A

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

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 COSMOS 1559
1 14998U 84052A   26036.99021507 -.00000008  00000-0  56896-4 0  9997
2 14998  74.0156 355.7773 0026087 314.1671 121.5169 12.43978041893227

Epoch: 2026-02-05T23:45Z

TLE epoch observation values (Epoch: 2026-02-05T23:45:54.582Z)

Latitude

68.91636°

Longitude

-89.15792°

Altitude

1,512.123 km

Speed

7.11 km/s

True Right ascension

02h 53m 48s

True Declination

68° 48' 42"

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

11:07:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,508.147 km

Perigee altitude

1,467.108 km

Semi-major axis

7,865.765 km

Eccentricity

0.00261

Inclination

74.0156°

RAAN

355.7773°

Arg. of periapsis

314.1671°

True anomaly

121.7713°

Mean anomaly

121.5169°

Eccentric anomaly

121.64415°

Mean motion

3.11123 °/min

Orbital period

115.71 mins

BSTAR

0.000056896

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

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COSMOS 1559 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.
15 mins	2026-02-06 09:38:42.036Z	323.936° NNW	2026-02-06 09:45:42.036Z	265.163° W	31.989°	2026-02-06 09:53:42.036Z	199.237° SSW
11 mins	2026-02-06 20:42:42.036Z	132.32° SE	2026-02-06 20:47:42.036Z	91.581° ESE	21.848°	2026-02-06 20:53:42.036Z	46.034° ENE
16 mins	2026-02-06 22:37:42.036Z	208.288° SW	2026-02-06 22:44:42.036Z	281.662° WNW	43.582°	2026-02-06 22:53:42.036Z	15.782° NNE
9 mins	2026-02-07 00:40:42.036Z	283.66° WNW	2026-02-07 00:44:42.036Z	313.302° NW	16.209°	2026-02-07 00:49:42.036Z	349.443° N
13 mins	2026-02-07 06:49:42.036Z	2.61° NNE	2026-02-07 06:55:42.036Z	50.957° ENE	25.811°	2026-02-07 07:02:42.036Z	108.868° ESE
14 mins	2026-02-07 08:47:42.036Z	334.309° NNW	2026-02-07 08:54:42.036Z	265.796° W	42.799°	2026-02-07 09:01:42.036Z	178.578° 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 1559, 14998 on other resources

View COSMOS 1559, 14998 on NASA - NSSDCA Website

View COSMOS 1559, 14998 on Heavens-Above

View COSMOS 1559, 14998 on Keep Track

View COSMOS 1559, 14998 on Celestrak

View COSMOS 1559, 14998 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 1559, 14998

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-02-05T23:45:54.582Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

COSMOS 1559 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1559, 14998 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago