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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 (39 years ago)

Launch vehicle

TSIKLON-3

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 0.9 m

Radar Cross Section

1.257 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 8 hours ago

TLE from 8 hours ago

0 COSMOS 1909
1 18788U 88002A   26306.79620301  .00000011  00000-0  20292-5 0  9997
2 18788  82.6139 189.3057 0002366  31.8533  40.4026 12.62873512788305

Epoch: 2026-11-02T19:06Z

TLE epoch observation values (Epoch: 2026-11-02T19:06:31.940Z)

Latitude

70.91006°

Longitude

-117.5123°

Altitude

1,421.934 km

Speed

7.157 km/s

True Right ascension

14h 04m 45s

True Declination

70° 48' 45"

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

23:21:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,410.267 km

Perigee altitude

1,406.583 km

Semi-major axis

7,786.562 km

Eccentricity

0.00024

Inclination

82.6139°

RAAN

189.3057°

Arg. of periapsis

31.8533°

True anomaly

40.42018°

Mean anomaly

40.4026°

Eccentric anomaly

40.41139°

Mean motion

3.15882 °/min

Orbital period

113.97 mins

BSTAR

0.0000020292

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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	2026-11-03 04:51:00.022Z	342.709° N	2026-11-03 04:58:00.022Z	281.248° WNW	54.604°	2026-11-03 05:06:00.022Z	196.116° SSW
12 mins	2026-11-03 15:46:00.022Z	132.658° SE	2026-11-03 15:51:00.022Z	87.357° E	30.056°	2026-11-03 15:58:00.022Z	28.229° NE
14 mins	2026-11-03 17:39:00.022Z	209.117° SW	2026-11-03 17:46:00.022Z	288.769° WNW	54.575°	2026-11-03 17:53:00.022Z	357.202° 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: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-11-02T19:06:31.940Z)

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: 8 hours ago