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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

Unknown / 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 (22 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: 1 day ago

TLE from 1 day ago

0 BILSAT 1
1 27943U 03042E   25353.06350682  .00000358  00000-0  73276-4 0  9997
2 27943  98.3767 154.1588 0010597 189.5632 170.5371 14.66878705187715

Epoch: 2025-12-19T01:31Z

TLE epoch observation values (Epoch: 2025-12-19T01:31:26.989Z)

Latitude

-0.00003°

Longitude

43.38631°

Altitude

681.409 km

Speed

7.512 km/s

True Right ascension

10h 16m 38s

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

00:41:00

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

675.597 km

Perigee altitude

660.663 km

Semi-major axis

7,046.267 km

Eccentricity

0.00106

Inclination

98.3767°

RAAN

154.1588°

Arg. of periapsis

189.5632°

True anomaly

170.55704°

Mean anomaly

170.5371°

Eccentric anomaly

170.54707°

Mean motion

3.66948 °/min

Orbital period

98.11 mins

BSTAR

0.000073276

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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	2025-12-20 10:23:51.140Z	138.35° SSE	2025-12-20 10:27:51.140Z	55.806° ENE	33.746°	2025-12-20 10:30:51.140Z	5.326° NNE
4 mins	2025-12-20 12:02:51.140Z	238.416° WSW	2025-12-20 12:04:51.140Z	269.418° W	16.93°	2025-12-20 12:06:51.140Z	299.129° NW
7 mins	2025-12-20 23:56:51.140Z	8.6° NNE	2025-12-20 23:59:51.140Z	270.39° WNW	44.392°	2025-12-21 00:03:51.140Z	199.381° SSW

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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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2025-12-19T01:31:26.989Z)

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: 1 day ago