OBJECT U, 42843

Orbit data source: Space-Track

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Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.

OBJECT U, 42843 is a satellite in SSO that was launched on Fri, 14 Jul 2017 UTC via a SOYUZ-2-1A launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.

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<iframe src="https://www.satcat.com/sats-embedded/42843?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/42843?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

42843, 2017-042U

Orbit

SSO

Country

TBD

Related business

None

Manufacturer

Unknown

Mission

Non-operational Commercial Meteo Radio Occ.

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

2017-07-14 (9 years ago)

Launch vehicle

SOYUZ-2-1A

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Unknown

Shape & HBR

Box + 2 Pan, 0.3 m

Radar Cross Section

0.079 m², Medium (>0.1 m² and < 1m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 OBJECT U
1 42843U 17042U   26134.32467757  .00002102  00000-0  16860-3 0  9991
2 42843  97.4543 292.3554 0013475 191.1905 168.9022 15.01066069481545

Epoch: 2026-05-14T07:47Z

TLE epoch observation values (Epoch: 2026-05-14T07:47:32.142Z)

Latitude

-0°

Longitude

-56.6005°

Altitude

575.852 km

Speed

7.568 km/s

True Right ascension

19h 29m 25s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

09:32:06

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

569.951 km

Perigee altitude

551.251 km

Semi-major axis

6,938.738 km

Eccentricity

0.00135

Inclination

97.4543°

RAAN

292.3554°

Arg. of periapsis

191.1905°

True anomaly

168.93187°

Mean anomaly

168.9022°

Eccentric anomaly

168.91704°

Mean motion

3.75511 °/min

Orbital period

95.87 mins

BSTAR

0.0001686

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Other satellites on launch #42 in the year 2017 (2017-07-14 UTC)

FLYING LAPTOP, 42831

CORVUS BC2, 42846

LEMUR 2 FURIAUS, 42840

LEMUR 2 DEMBITZ, 42842

FLOCK 2K 40, 42865 (Decayed)

FLOCK 2K 27, 42882 (Decayed)

FREGAT DEB, 44608 (Decayed)

FLOCK 2K 44, 42873 (Decayed)

FLOCK 2K 14, 42892 (Decayed)

OBJECT AA, 42849

FLOCK 2K 04, 42851 (Decayed)

NORSAT 1, 42826

CORVUS BC1, 42847

FLOCK 2K 08, 42863 (Decayed)

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OBJECT U 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.
5 mins	2026-05-15 09:32:27.750Z	108.952° ESE	2026-05-15 09:35:27.750Z	60.547° ENE	16.703°	2026-05-15 09:37:27.750Z	29.021° NE
6 mins	2026-05-15 11:07:27.750Z	207.357° SW	2026-05-15 11:09:27.750Z	249.665° W	29.021°	2026-05-15 11:13:27.750Z	328.622° NNW
5 mins	2026-05-15 22:46:27.750Z	43.755° NE	2026-05-15 22:48:27.750Z	83.282° E	26.15°	2026-05-15 22:51:27.750Z	150.758° SSE
4 mins	2026-05-16 00:22:27.750Z	316.163° NNW	2026-05-16 00:23:27.750Z	297.112° NW	17.919°	2026-05-16 00:26:27.750Z	247.206° WSW

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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 OBJECT U, 42843 on other resources

View OBJECT U, 42843 on Heavens-Above

View OBJECT U, 42843 on Keep Track

View OBJECT U, 42843 on Celestrak

View OBJECT U, 42843 on Gunter's Space Page

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

OBJECT U, 42843

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-05-14T07:47:32.142Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #42 in the year 2017 (2017-07-14 UTC)

OBJECT U Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT U, 42843 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 17 hours ago