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COSMOS 1888, 18384

Orbit data source: Space-Track

COSMOS 1888, 18384 is a payload satellite owned by UNKS (CIS) in GEO that was launched on Thu, 01 Oct 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.

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Iframe URL

https://www.satcat.com/sats-embedded/18384?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18384, 1987-084A

Orbit

GEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

NPOPM/NPOL

Mission

Defense Communications

Bus & Motor

GEIZER, Unknown motor

Mass

2,100 kg wet, ~1,900 kg dry

Launch date (UTC)

1987-10-01 (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 Pan + 1 Plate, 4.5 m

Radar Cross Section

27.853 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 COSMOS 1888
1 18384U 87084A   26058.72901082 -.00000351  00000-0  00000+0 0  9990
2 18384  10.9504 326.7758 0002586 298.2717 263.6675  1.00175435140590

Epoch: 2026-02-27T17:29Z

TLE epoch observation values (Epoch: 2026-02-27T17:29:46.534Z)

Latitude

-4.06154°

Longitude

108.36341°

Altitude

35,815.022 km

Speed

3.074 km/s

True Right ascension

11h 13m 28s

True Declination

-4° 03' 27"

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

04:08:58

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,825.551 km

Perigee altitude

35,803.729 km

Semi-major axis

42,192.777 km

Eccentricity

0.00026

Inclination

10.9504°

RAAN

326.7758°

Arg. of periapsis

298.2717°

True anomaly

263.63805°

Mean anomaly

263.6675°

Eccentric anomaly

263.65277°

Mean motion

0.25043 °/min

Orbital period

1,437.53 mins

BSTAR

Loading maneuver chart data...

Computing Atmospheric mass density...

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Other satellites on launch #84 in the year 1987 (1987-10-01 UTC)

SL-12 PLAT, 18386 (Decayed)

SL-12 R/B(AUX MOTOR), 18420 (Decayed)

SL-12 R/B(2), 18387

SL-12 R/B(AUX MOTOR), 18388 (Decayed)

SL-12 R/B(1), 18385 (Decayed)

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COSMOS 1888 Visibility

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18384 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 1888, 18384 on other resources

View COSMOS 1888, 18384 on NASA - NSSDCA Website

View COSMOS 1888, 18384 on Heavens-Above

View COSMOS 1888, 18384 on Keep Track

View COSMOS 1888, 18384 on Celestrak

View COSMOS 1888, 18384 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 1888, 18384

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-02-27T17:29:46.534Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #84 in the year 1987 (1987-10-01 UTC)

COSMOS 1888 Visibility

18384 neighbors

Co-orbital & Co-planar RSOs

Check out COSMOS 1888, 18384 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago