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COSMOS 1909, 18788

Orbit data source: Space-Track

COSMOS 1909, 18788 is a payload satellite owned by UNKS (CIS) in LEO that was launched on Fri, 15 Jan 1988 UTC via a TSIKLON-3 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/18788?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

18788, 1988-002A

Orbit

LEO

Country

CIS

Related business

Russian Space Forces (RU)

Manufacturer

NPO PM

Mission

Defense Communications

Bus & Motor

STRELA-3, Unknown motor

Mass

225 kg wet, 225 kg dry

Launch date (UTC)

1988-01-15 (38 years ago)

Launch vehicle

TSIKLON-3

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.8 m

Radar Cross Section

1.257 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 12 hours ago

TLE from 12 hours ago

0 COSMOS 1909
1 18788U 88002A   26036.66375356  .00000025  00000-0  78243-4 0  9993
2 18788  82.6145   1.0838 0000456 272.9404 260.3698 12.62866184754209

Epoch: 2026-02-05T15:55Z

TLE epoch observation values (Epoch: 2026-02-05T15:55:48.307Z)

Latitude

6.56846°

Longitude

165.46882°

Altitude

1,413.318 km

Speed

7.154 km/s

True Right ascension

12h 00m 55s

True Declination

6° 31' 58"

Sunlit

Object was in full 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

06:09:27

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,408.81 km

Perigee altitude

1,408.1 km

Semi-major axis

7,786.592 km

Eccentricity

0.00005

Inclination

82.6145°

RAAN

1.0838°

Arg. of periapsis

272.9404°

True anomaly

260.36465°

Mean anomaly

260.3698°

Eccentric anomaly

260.36722°

Mean motion

3.1588 °/min

Orbital period

113.97 mins

BSTAR

0.000078243

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Other satellites on launch #2 in the year 1988 (1988-01-15 UTC)

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COSMOS 1909 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 08:43:41.005Z	2.038° NNE	2026-02-06 08:51:41.005Z	81.744° E	38.387°	2026-02-06 08:58:41.005Z	150.366° SSE
12 mins	2026-02-06 10:40:41.005Z	325.789° NNW	2026-02-06 10:45:41.005Z	279.796° WNW	27.515°	2026-02-06 10:52:41.005Z	219.178° SW
14 mins	2026-02-06 21:32:41.005Z	158.609° S	2026-02-06 21:38:41.005Z	94.181° ESE	38.491°	2026-02-06 21:46:41.005Z	17.26° NNE
12 mins	2026-02-06 23:28:41.005Z	237.088° WSW	2026-02-06 23:33:41.005Z	283.716° WNW	27.776°	2026-02-06 23:40:41.005Z	347.032° N

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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 1909, 18788 on other resources

View COSMOS 1909, 18788 on NASA - NSSDCA Website

View COSMOS 1909, 18788 on Heavens-Above

View COSMOS 1909, 18788 on Keep Track

View COSMOS 1909, 18788 on Celestrak

View COSMOS 1909, 18788 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 1909, 18788

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-02-05T15:55:48.307Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #2 in the year 1988 (1988-01-15 UTC)

COSMOS 1909 Visibility forecast

Co-orbital & Co-planar RSOs

Check out COSMOS 1909, 18788 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago