OBJECT U, 42843

Orbit data source: Space-Track

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Recently launched and/or uncataloged RSOs may have evolving metadata. Metadata may include the following, but is not limited to: Owner, Manufacturer, 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: 8 hours ago

TLE from 8 hours ago

0 OBJECT U
1 42843U 17042U   26237.16494874  .00001819  00000-0  14485-3 0  9992
2 42843  97.4916  31.3447 0011167 203.1436 156.9287 15.01536395496977

Epoch: 2026-08-25T03:57Z

TLE epoch observation values (Epoch: 2026-08-25T03:57:31.571Z)

Latitude

-0.00003°

Longitude

-1.47306°

Altitude

572.354 km

Speed

7.571 km/s

True Right ascension

02h 05m 22s

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

03:27:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

566.899 km

Perigee altitude

551.405 km

Semi-major axis

6,937.289 km

Eccentricity

0.00112

Inclination

97.4916°

RAAN

31.3447°

Arg. of periapsis

203.1436°

True anomaly

156.97878°

Mean anomaly

156.9287°

Eccentric anomaly

156.95375°

Mean motion

3.75628 °/min

Orbital period

95.84 mins

BSTAR

0.00014485

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

FLOCK 2K 04, 42851 (Decayed)

LEMUR 2 PETERG, 42841

CORVUS BC2, 42846

LEMUR 2 FURIAUS, 42840

LEMUR 2 DEMBITZ, 42842

LEMUR 2 GREENBERG, 42837

FLOCK 2K 13, 42891 (Decayed)

FLOCK 2K 25, 42884 (Decayed)

FLOCK 2K 45, 42856 (Decayed)

OBJECT F, 42830 (Decayed)

LEMUR 2 ANDIS, 42838

NANOACE, 42844

NORSAT 2, 42828

LEMUR 2 ZACHARY, 42845

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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	2026-08-25 23:44:08.686Z	338.772° N	2026-08-25 23:46:08.686Z	278.719° WNW	32.039°	2026-08-25 23:49:08.686Z	221.131° SW
6 mins	2026-08-26 10:29:08.686Z	173.423° S	2026-08-26 10:31:08.686Z	202.096° SSW	43.441°	2026-08-26 10:35:08.686Z	345.119° N

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Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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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: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-08-25T03:57:31.571Z)

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: 8 hours ago