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RUBIN 4/SL-8, 27940

Orbit data source: Space-Track

RUBIN 4/SL-8, 27940 is a payload satellite owned by KVR (DE) in SSO that was launched on Sat, 27 Sep 2003 UTC launched 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/27940?theme=dark&initialShowStats=false

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Identifier

27940, 2003-042B

Orbit

SSO

Country

DE / GER

Related business

Russian Space Forces (RU)

Manufacturer

Polyot

Mission

Spacecraft

Bus & Motor

S3, Unknown motor

Mass

1,479 kg wet, 1,434 kg dry

Launch date (UTC)

2003-09-27 (23 years ago)

Launch vehicle

Unknown

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 2.1 m

Radar Cross Section

10.179 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 22 hours ago

TLE from 22 hours ago

0 RUBIN 4/SL-8
1 27940U 03042B   26185.95140034  .00000683  00000-0  12402-3 0  9998
2 27940  98.3884   4.4043 0011950 304.4697  55.5378 14.69509574217179

Epoch: 2026-07-04T22:50Z

TLE epoch observation values (Epoch: 2026-07-04T22:50:00.989Z)

Latitude

-0.00004°

Longitude

98.94246°

Altitude

660.871 km

Speed

7.529 km/s

True Right ascension

00h 17m 37s

True Declination

0° 00' 00"

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

08:43:00

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

668.122 km

Perigee altitude

651.301 km

Semi-major axis

7,037.848 km

Eccentricity

0.0012

Inclination

98.3884°

RAAN

4.4043°

Arg. of periapsis

304.4697°

True anomaly

55.6508°

Mean anomaly

55.5378°

Eccentric anomaly

55.59429°

Mean motion

3.67607 °/min

Orbital period

97.93 mins

BSTAR

0.00012402

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Other satellites on launch #42 in the year 2003 (2003-09-27 UTC)

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RUBIN 4/SL-8 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.
6 mins	2026-07-05 23:56:02.589Z	45.737° ENE	2026-07-05 23:59:02.589Z	90.516° ESE	21.366°	2026-07-06 00:02:02.589Z	140.018° SSE
6 mins	2026-07-06 01:34:02.589Z	336.664° NNW	2026-07-06 01:36:02.589Z	294.881° NW	28.341°	2026-07-06 01:40:02.589Z	228.895° WSW
5 mins	2026-07-06 10:57:02.589Z	101.427° ESE	2026-07-06 10:59:02.589Z	67.252° ENE	20.521°	2026-07-06 11:02:02.589Z	21.02° NNE
6 mins	2026-07-06 12:33:02.589Z	206.553° SW	2026-07-06 12:36:02.589Z	270.091° WNW	29.595°	2026-07-06 12:39:02.589Z	322.431° NNW

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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 RUBIN 4/SL-8, 27940 on other resources

View RUBIN 4/SL-8, 27940 on NASA - NSSDCA Website

View RUBIN 4/SL-8, 27940 on Heavens-Above

View RUBIN 4/SL-8, 27940 on Keep Track

View RUBIN 4/SL-8, 27940 on Celestrak

View RUBIN 4/SL-8, 27940 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

RUBIN 4/SL-8, 27940

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-07-04T22:50:00.989Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #42 in the year 2003 (2003-09-27 UTC)

RUBIN 4/SL-8 Visibility forecast

Co-orbital & Co-planar RSOs

Check out RUBIN 4/SL-8, 27940 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago