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COSMOS 1637, 15619

Orbit data source: Space-Track

COSMOS 1637, 15619 is a payload satellite in LEO that was launched on Thu, 21 Mar 1985 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/15619?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/15619?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

15619, 1985-023C

Orbit

LEO

Last TLE update

1 day ago

Origin

Russian Space Forces (RU)

Manufacturer

NPO PM

Mission

Defense Communications

Bus & Motor

STRELA-1 11F625, Unknown motor

Mass

60 kg wet, 60 kg dry

Launch date (UTC)

1985-03-21 (40 years ago)

Launch vehicle

KOSMOS 11K65M

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Sphere, 0.8 m

Radar Cross Section

0.588 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history

TLE from 1 day ago

0 COSMOS 1637
1 15619U 85023C   25141.51215824 -.00000012  00000-0  25051-4 0  9992
2 15619  74.0552 266.4477 0014892 159.4790 274.2438 12.47236880828944

Epoch: 2025-05-21T12:17Z

TLE epoch observation values (Epoch: 2025-05-21T12:17:30.471Z)

Latitude

67.33355°

Longitude

-114.42054°

Altitude

1,486.516 km

Speed

7.127 km/s

True Right ascension

20h 37m 24s

True Declination

67° 13' 21"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

59.63937°

Longitude

-7.85348°

Altitude

1,477.049 km

Speed

7.134 km/s

Apparent Right ascension

08h 58m 31s

Apparent Declination

35° 39' 23"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

00:29:41

Azimuth

40.325° NE

Elevation

-0.162°

Doppler factor

Orbital elements

Apogee altitude

1,485.603 km

Perigee altitude

1,462.217 km

Semi-major axis

7,852.047 km

Eccentricity

0.00149

Inclination

74.0552°

RAAN

266.4477°

Arg. of periapsis

159.479°

True anomaly

Unknown

Mean anomaly

274.2438°

Eccentric anomaly

Unknown

Mean motion

3.11938 °/min

Orbital period

115.41 mins

BSTAR

0.000025051

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Other satellites on launch #23 in the year 1985 (1985-03-21 UTC)

COSMOS 1637 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.
10 mins	2025-05-22 17:21:06.931Z	8.993° NNE	2025-05-22 17:26:06.931Z	45.287° ENE	16.578°	2025-05-22 17:31:06.931Z	82.453° E
16 mins	2025-05-22 19:18:06.931Z	344.782° N	2025-05-22 19:26:06.931Z	89.982° E	43.915°	2025-05-22 19:34:06.931Z	155.096° SSE
10 mins	2025-05-22 21:18:06.931Z	305.279° NW	2025-05-22 21:23:06.931Z	263.882° W	20.529°	2025-05-22 21:28:06.931Z	225.932° WSW
14 mins	2025-05-23 08:16:06.931Z	158.019° S	2025-05-23 08:23:06.931Z	93.269° ESE	32.252°	2025-05-23 08:30:06.931Z	35.09° NE
15 mins	2025-05-23 10:13:06.931Z	227.535° WSW	2025-05-23 10:20:06.931Z	290.5° WNW	36.076°	2025-05-23 10:28:06.931Z	7.45° NNE

Authenticating...

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Check out COSMOS 1637, 15619 on other resources

View COSMOS 1637, 15619 on NASA - NSSDCA Website

View COSMOS 1637, 15619 on Heavens-Above

View COSMOS 1637, 15619 on Keep Track

View COSMOS 1637, 15619 on Celestrak

View COSMOS 1637, 15619 on Gunter's Space Page

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