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: 1 day ago

TLE from 1 day ago

0 OBJECT U
1 42843U 17042U   26185.71564863  .00003431  00000-0  27021-3 0  9993
2 42843  97.4764 341.7481 0014904  26.9530 333.2465 15.01351821489252

Epoch: 2026-07-04T17:10Z

TLE epoch observation values (Epoch: 2026-07-04T17:10:32.041Z)

Latitude

-0.00012°

Longitude

161.38926°

Altitude

556.554 km

Speed

7.588 km/s

True Right ascension

22h 46m 59s

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

09:21:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

570.061 km

Perigee altitude

549.38 km

Semi-major axis

6,937.858 km

Eccentricity

0.00149

Inclination

97.4764°

RAAN

341.7481°

Arg. of periapsis

26.953°

True anomaly

333.16949°

Mean anomaly

333.2465°

Eccentric anomaly

333.20801°

Mean motion

3.75582 °/min

Orbital period

95.85 mins

BSTAR

0.00027021

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

FLOCK 2K 16, 42889 (Decayed)

FLOCK 2K 36, 42876 (Decayed)

OBJECT H, 42832

OBJECT M, 42836

OBJECT Z, 42848

FLOCK 2K 15, 42890 (Decayed)

OBJECT K, 42834

LEMUR 2 PETERG, 42841

NORSAT 1, 42826

FLOCK 2K 31, 42869 (Decayed)

TECHNOSAT, 42829

OBJECT F, 42830 (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	2026-07-05 22:32:42.349Z	43.675° NE	2026-07-05 22:35:42.349Z	98.755° ESE	22.617°	2026-07-05 22:38:42.349Z	149.673° SSE
4 mins	2026-07-06 00:08:42.349Z	326.778° NNW	2026-07-06 00:10:42.349Z	284.682° WNW	21.716°	2026-07-06 00:12:42.349Z	247.365° WSW
6 mins	2026-07-06 10:53:42.349Z	196.657° SSW	2026-07-06 10:56:42.349Z	279.776° WNW	33.281°	2026-07-06 10:59:42.349Z	332.041° 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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-07-04T17:10:32.041Z)

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: 1 day ago