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COSMOS 1897, 18575

Orbit data source: Space-Track

COSMOS 1897, 18575 is a payload satellite owned by UNKS (CIS) in GEO that was launched on Thu, 26 Nov 1987 UTC via a PROTON-K/DM-2 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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.

Not visible in the next 10 days

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Iframe URL

https://www.satcat.com/sats-embedded/18575?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18575, 1987-096A

Orbit

GEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

NPO PM

Mission

Non-operational Defense Communications

Bus & Motor

KAUR-4 AL'TAIR, Unknown motor

Mass

2,400 kg wet, ~2,200 kg dry

Launch date (UTC)

1987-11-26 (38 years ago)

Launch vehicle

PROTON-K/DM-2

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 2.5 m

Radar Cross Section

9.425 m², Large (>1 m²)

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Last TLE update: 1 day ago

TLE from 1 day ago

0 COSMOS 1897
1 18575U 87096A   25255.85931747  .00000080  00000-0  00000-0 0  9997
2 18575  11.4074 328.6924 0008281 154.1831 230.6986  1.00272981138412

Epoch: 2025-09-12T20:37Z

TLE epoch observation values (Epoch: 2025-09-12T20:37:25.029Z)

Latitude

4.75872°

Longitude

51.61649°

Altitude

35,807.563 km

Speed

3.073 km/s

True Right ascension

23h 32m 17s

True Declination

4° 45' 14"

Sunlit

Object was in partial shadow 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

19:02:17

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,822.186 km

Perigee altitude

35,752.352 km

Semi-major axis

42,165.406 km

Eccentricity

0.00083

Inclination

11.4074°

RAAN

328.6924°

Arg. of periapsis

154.1831°

True anomaly

230.62522°

Mean anomaly

230.6986°

Eccentric anomaly

230.6619°

Mean motion

0.25067 °/min

Orbital period

1,436.13 mins

BSTAR

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Other satellites on launch #96 in the year 1987 (1987-11-26 UTC)

SL-12 R/B(1), 18576 (Decayed)

SL-12 PLAT, 18577 (Decayed)

SL-12 R/B(2), 18578

SL-12 R/B(AUX MOTOR), 18579 (Decayed)

SL-12 R/B(AUX MOTOR), 18580 (Decayed)

COSMOS 1897 DEB, 44572

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COSMOS 1897 Visibility

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18575 neighbors

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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 1897, 18575 on other resources

View COSMOS 1897, 18575 on NASA - NSSDCA Website

View COSMOS 1897, 18575 on Heavens-Above

View COSMOS 1897, 18575 on Keep Track

View COSMOS 1897, 18575 on Celestrak

View COSMOS 1897, 18575 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 1897, 18575

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2025-09-12T20:37:25.029Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #96 in the year 1987 (1987-11-26 UTC)

COSMOS 1897 Visibility

18575 neighbors

Co-orbital & Co-planar RSOs

Check out COSMOS 1897, 18575 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 1 day ago