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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: 7 hours ago

TLE from 7 hours ago

0 COSMOS 1909
1 18788U 88002A   26092.87778250  .00000062  00000-0  28301-3 0  9998
2 18788  82.6130 325.3519 0002322 115.3289 257.3802 12.62868165761309

Epoch: 2026-04-02T21:04Z

TLE epoch observation values (Epoch: 2026-04-02T21:04:00.408Z)

Latitude

12.53911°

Longitude

179.77443°

Altitude

1,413.509 km

Speed

7.155 km/s

True Right ascension

21h 47m 59s

True Declination

12° 28' 21"

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

10:10:19

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,410.255 km

Perigee altitude

1,406.639 km

Semi-major axis

7,786.584 km

Eccentricity

0.00023

Inclination

82.613°

RAAN

325.3519°

Arg. of periapsis

115.3289°

True anomaly

257.35424°

Mean anomaly

257.3802°

Eccentric anomaly

257.36722°

Mean motion

3.1588 °/min

Orbital period

113.97 mins

BSTAR

0.00028301

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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.
9 mins	2026-04-03 05:15:42.325Z	316.693° NNW	2026-04-03 05:20:42.325Z	277.83° WNW	16.712°	2026-04-03 05:24:42.325Z	247.407° WSW
7 mins	2026-04-03 14:16:42.325Z	101.937° ESE	2026-04-03 14:19:42.325Z	78.856° E	14.916°	2026-04-03 14:23:42.325Z	48.402° ENE
15 mins	2026-04-03 16:06:42.325Z	183.237° SSW	2026-04-03 16:13:42.325Z	61.061° ENE	44.932°	2026-04-03 16:21:42.325Z	8.445° NNE
9 mins	2026-04-03 18:05:42.325Z	264.007° W	2026-04-03 18:09:42.325Z	296.758° NW	17.709°	2026-04-03 18:14:42.325Z	335.538° NNW
13 mins	2026-04-04 02:08:42.325Z	15.163° NNE	2026-04-04 02:14:42.325Z	73.662° E	29.805°	2026-04-04 02:21:42.325Z	134.355° SE
13 mins	2026-04-04 04:03:42.325Z	336.098° NNW	2026-04-04 04:09:42.325Z	270.902° WNW	36.613°	2026-04-04 04:16:42.325Z	202.73° SW

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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: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-04-02T21:04:00.408Z)

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: 7 hours ago