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BILSAT 1, 27943

Orbit data source: Space-Track

BILSAT 1, 27943 is a payload satellite owned by TUBITAK-BILTEN (TR) in SSO that was launched on Sat, 27 Sep 2003 UTC via a KOSMOS 11K65M 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/27943?theme=dark&initialShowStats=false

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Identifier

27943, 2003-042E

Orbit

SSO

Country

TR / TURK

Related business

Information Technologies and Electronics Institute (TR)

Manufacturer

SSTL

Mission

Civil Imaging

Bus & Motor

SSTL-100, Unknown motor

Mass

100 kg wet, 100 kg dry

Launch date (UTC)

2003-09-27 (23 years ago)

Launch vehicle

KOSMOS 11K65M

Launch site

Plesetsk Missile And Space Complex (PKMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Arm, 3.3 m

Radar Cross Section

0.540 m², Medium (>0.1 m² and < 1m²)

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

TLE from 22 hours ago

0 BILSAT 1
1 27943U 03042E   26185.93283290  .00000407  00000-0  81661-4 0  9999
2 27943  98.3989 356.5775 0009697 298.4737  61.5489 14.67073091216721

Epoch: 2026-07-04T22:23Z

TLE epoch observation values (Epoch: 2026-07-04T22:23:16.762Z)

Latitude

-0.00004°

Longitude

97.81824°

Altitude

670.164 km

Speed

7.524 km/s

True Right ascension

23h 46m 18s

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

08:37:08

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

674.341 km

Perigee altitude

660.676 km

Semi-major axis

7,045.645 km

Eccentricity

0.00097

Inclination

98.3989°

RAAN

356.5775°

Arg. of periapsis

298.4737°

True anomaly

61.64666°

Mean anomaly

61.5489°

Eccentric anomaly

61.59777°

Mean motion

3.66997 °/min

Orbital period

98.09 mins

BSTAR

0.000081661

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

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BILSAT 1 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.
7 mins	2026-07-05 23:31:11.569Z	38.423° NE	2026-07-05 23:35:11.569Z	100.686° ESE	24.62°	2026-07-05 23:38:11.569Z	149.079° SSE
6 mins	2026-07-06 01:09:11.569Z	340.945° N	2026-07-06 01:12:11.569Z	286.981° WNW	25.22°	2026-07-06 01:15:11.569Z	238.746° WSW
6 mins	2026-07-06 10:33:11.569Z	113.409° SE	2026-07-06 10:36:11.569Z	58.744° ENE	23.741°	2026-07-06 10:39:11.569Z	14.517° NNE
6 mins	2026-07-06 12:10:11.569Z	215.406° SW	2026-07-06 12:13:11.569Z	274.199° WNW	25.468°	2026-07-06 12:16:11.569Z	319.954° 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 BILSAT 1, 27943 on other resources

View BILSAT 1, 27943 on NASA - NSSDCA Website

View BILSAT 1, 27943 on Heavens-Above

View BILSAT 1, 27943 on Keep Track

View BILSAT 1, 27943 on Celestrak

View BILSAT 1, 27943 on Gunter's Space Page

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

BILSAT 1, 27943

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: 2026-07-04T22:23:16.762Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

BILSAT 1 Visibility forecast

Co-orbital & Co-planar RSOs

Check out BILSAT 1, 27943 on other resources

Documentation

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