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: 9 hours ago

TLE from 9 hours ago

0 OBJECT U
1 42843U 17042U   26088.19141769  .00003953  00000-0  31515-3 0  9995
2 42843  97.4323 248.1562 0014054 356.3163   3.7956 15.00803854474627

Epoch: 2026-03-29T04:35Z

TLE epoch observation values (Epoch: 2026-03-29T04:35:38.488Z)

Latitude

0°

Longitude

-7.35502°

Altitude

557.742 km

Speed

7.588 km/s

True Right ascension

16h 32m 37s

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

18:55:36

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

571.162 km

Perigee altitude

551.656 km

Semi-major axis

6,939.546 km

Eccentricity

0.00141

Inclination

97.4323°

RAAN

248.1562°

Arg. of periapsis

356.3163°

True anomaly

3.80628°

Mean anomaly

3.7956°

Eccentric anomaly

3.80094°

Mean motion

3.75445 °/min

Orbital period

95.89 mins

BSTAR

0.00031515

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

OBJECT J, 42833

LEMUR 2 ANDIS, 42838

LEMUR 2 ZACHARY, 42845

LEMUR 2 MONSON, 42839

NORSAT 2, 42828

CORVUS BC2, 42846

FLYING LAPTOP, 42831

LEMUR 2 FURIAUS, 42840

LEMUR 2 DEMBITZ, 42842

OBJECT K, 42834

OBJECT Z, 42848

LEMUR 2 PETERG, 42841

FLOCK 2K 41, 42875 (Decayed)

FLOCK 2K 16, 42889 (Decayed)

FLOCK 2K 21, 42860 (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.
6 mins	2026-03-29 22:46:13.114Z	39.988° NE	2026-03-29 22:49:13.114Z	94.166° ESE	24.657°	2026-03-29 22:52:13.114Z	150.58° SSE
5 mins	2026-03-30 00:22:13.114Z	328.195° NNW	2026-03-30 00:24:13.114Z	289.878° WNW	20.363°	2026-03-30 00:27:13.114Z	241.161° WSW
5 mins	2026-03-30 11:08:13.114Z	207.099° SW	2026-03-30 11:10:13.114Z	261.403° W	31.966°	2026-03-30 11:13:13.114Z	326.955° 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 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: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-03-29T04:35:38.488Z)

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: 9 hours ago