OBJECT C, 100957

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 C, 100957 is a South Korean satellite in SSO that was launched on Wed, 07 Oct 2026 UTC launched from the Naro Space Center, South Korea (NSC). 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/100957?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/100957?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

100957, 2026-229C

Orbit

SSO

Country

KR / SKOR

Related business

None

Manufacturer

Unknown

Mission

Operational spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

2026-10-07 (3 days ago)

Launch vehicle

Unknown

Launch site

Naro Space Center, South Korea (NSC)

Object type

Unknown

Shape & HBR

Unknown

Radar Cross Section

RCS unknown

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Last TLE update: 10 hours ago

TLE from 10 hours ago

0 OBJECT C
1 A0957U 26229C   26283.52762880  .00001720  00000-0  15295-3 0  9996
2 A0957  97.6980  19.6361 0010115  81.3605 278.8762 14.97374155   522

Epoch: 2026-10-10T12:39Z

TLE epoch observation values (Epoch: 2026-10-10T12:39:47.128Z)

Latitude

-0.00007°

Longitude

170.55627°

Altitude

576.986 km

Speed

7.573 km/s

True Right ascension

01h 18m 32s

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

16:51:39

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

579.052 km

Perigee altitude

564.992 km

Semi-major axis

6,950.159 km

Eccentricity

0.00101

Inclination

97.698°

RAAN

19.6361°

Arg. of periapsis

81.3605°

True anomaly

278.76166°

Mean anomaly

278.8762°

Eccentric anomaly

278.81893°

Mean motion

3.74586 °/min

Orbital period

96.11 mins

BSTAR

0.00015295

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Other satellites on launch #229 in the year 2026 (2026-10-07 UTC)

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OBJECT C 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	2026-10-11 06:25:58.084Z	158.688° S	2026-10-11 06:28:58.084Z	95.698° ESE	72.199°	2026-10-11 06:32:58.084Z	352.024° N
6 mins	2026-10-11 19:42:58.084Z	354.501° N	2026-10-11 19:44:58.084Z	298.852° NW	55.045°	2026-10-11 19:48:58.084Z	208.317° SW

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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 C, 100957 on other resources

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View OBJECT C, 100957 on Gunter's Space Page

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OBJECT C, 100957

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-10-10T12:39:47.128Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #229 in the year 2026 (2026-10-07 UTC)

OBJECT C Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT C, 100957 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago