OBJECT D, 48843

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 D, 48843 is a satellite owned by 21AT (CN) in SSO that was launched on Fri, 11 Jun 2021 UTC via a CHANG ZHENG 2D launch vehicle from the Taiyaun Space Center, China (TSC). 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/48843?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/48843?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

48843, 2021-050D

Orbit

SSO

Country

CN / PRC

Related business

21st Century Space Technology Application Co., Ltd. (CN)

Manufacturer

DFH

Mission

Operational Commercial Imaging

Bus & Motor

CAST-3000E, Unknown motor

Mass

3,000 kg wet, 3,000 kg dry

Launch date (UTC)

2021-06-11 (5 years ago)

Launch vehicle

CHANG ZHENG 2D

Launch site

Taiyaun Space Center, China (TSC)

Object type

Unknown

Shape & HBR

Box + 2 Pan, 1.0 m

Radar Cross Section

6.000 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 21 hours ago

TLE from 21 hours ago

0 OBJECT D
1 48843U 21050D   26172.53960427  .00004981  00000-0  21244-3 0  9997
2 48843  97.3336 248.4765 0004127 240.4809 119.6017 15.23367648279623

Epoch: 2026-06-21T12:57Z

TLE epoch observation values (Epoch: 2026-06-21T12:57:01.808Z)

Latitude

-0.00004°

Longitude

144.48055°

Altitude

500.191 km

Speed

7.614 km/s

True Right ascension

16h 33m 54s

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

21:25:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

495.485 km

Perigee altitude

489.814 km

Semi-major axis

6,870.787 km

Eccentricity

0.00041

Inclination

97.3336°

RAAN

248.4765°

Arg. of periapsis

240.4809°

True anomaly

119.64281°

Mean anomaly

119.6017°

Eccentric anomaly

119.62226°

Mean motion

3.81095 °/min

Orbital period

94.46 mins

BSTAR

0.00021244

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Other satellites on launch #50 in the year 2021 (2021-06-11 UTC)

OBJECT C, 48842 (Decayed)

OBJECT A, 48840 (Decayed)

OBJECT B, 48841 (Decayed)

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OBJECT D 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	2026-06-22 17:53:13.079Z	14.57° NNE	2026-06-22 17:56:13.079Z	67.714° E	44.411°	2026-06-22 17:59:13.079Z	188.641° SSW
4 mins	2026-06-23 04:31:13.079Z	112.05° ESE	2026-06-23 04:33:13.079Z	58.598° ENE	24.419°	2026-06-23 04:35:13.079Z	18.792° NNE

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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 D, 48843 on other resources

View OBJECT D, 48843 on Heavens-Above

View OBJECT D, 48843 on Keep Track

View OBJECT D, 48843 on Celestrak

View OBJECT D, 48843 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 D, 48843

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 21 hours ago

TLE from 21 hours ago

TLE epoch observation values (Epoch: 2026-06-21T12:57:01.808Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #50 in the year 2021 (2021-06-11 UTC)

OBJECT D Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT D, 48843 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 21 hours ago