OBJECT B, 100238

Orbit data source: Space-Track

You're viewing an uncataloged RSO

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 B, 100238 is a Chinese satellite in SSO that was launched on Wed, 05 Aug 2026 UTC launched from the Yellow Sea Launch Area, China (YSLA). 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/100238?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/100238?theme=dark&initialShowStats=false

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Identifier

100238, 2026-178B

Orbit

SSO

Country

CN / PRC

Related business

None

Manufacturer

Unknown

Mission

Operational spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

2026-08-05 (1 month ago)

Launch vehicle

Unknown

Launch site

Yellow Sea Launch Area, China (YSLA)

Object type

Unknown

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 5 days ago

TLE from 5 days ago

0 OBJECT B
1 A0238U 26178B   26244.91520459  .00000013  00000-0  21602-4 0  9999
2 A0238  98.5490 318.8591 0012913 205.3714 154.6836 14.30658375  3988

Epoch: 2026-09-01T21:57Z

TLE epoch observation values (Epoch: 2026-09-01T21:57:53.676Z)

Latitude

-0.00005°

Longitude

8.31022°

Altitude

800.836 km

Speed

7.449 km/s

True Right ascension

21h 15m 26s

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

13:05:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

795.92 km

Perigee altitude

777.416 km

Semi-major axis

7,164.805 km

Eccentricity

0.00129

Inclination

98.549°

RAAN

318.8591°

Arg. of periapsis

205.3714°

True anomaly

154.74678°

Mean anomaly

154.6836°

Eccentric anomaly

154.7152°

Mean motion

3.57879 °/min

Orbital period

100.59 mins

BSTAR

0.000021602

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Other satellites on launch #178 in the year 2026 (2026-08-05 UTC)

OBJECT A, 100237

OBJECT C, 100239 (Decayed)

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OBJECT B 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	2026-09-07 04:00:02.182Z	115.43° SE	2026-09-07 04:03:02.182Z	75.27° E	25.884°	2026-09-07 04:07:02.182Z	16.65° NNE
8 mins	2026-09-07 05:39:02.182Z	200.55° SSW	2026-09-07 05:43:02.182Z	269.057° W	37.663°	2026-09-07 05:47:02.182Z	326.967° NNW
9 mins	2026-09-07 17:52:02.182Z	15.929° NNE	2026-09-07 17:56:02.182Z	112.673° SE	82.578°	2026-09-07 18:01:02.182Z	191.705° SSW

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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 B, 100238 on other resources

View OBJECT B, 100238 on Heavens-Above

View OBJECT B, 100238 on Keep Track

View OBJECT B, 100238 on Celestrak

View OBJECT B, 100238 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 B, 100238

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 5 days ago

TLE from 5 days ago

TLE epoch observation values (Epoch: 2026-09-01T21:57:53.676Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #178 in the year 2026 (2026-08-05 UTC)

OBJECT B Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT B, 100238 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 5 days ago