OBJECT A, 66409

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 A, 66409 is a satellite owned by CASIC (CN) in SSO that was launched on Sun, 09 Nov 2025 UTC via a LIJIAN-1 launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). 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/66409?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/66409?theme=dark&initialShowStats=false

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Identifier

66409, 2025-256A

Orbit

SSO

Country

CN / PRC

Related business

China Aerospace Science and Technology Corporation (CASC) (CN)

Manufacturer

CASIC

Mission

Operational Civil Imaging

Bus & Motor

CHUTIAN, Unknown motor

Mass

~150 kg wet, ~150 kg dry

Launch date (UTC)

2025-11-09 (7 months ago)

Launch vehicle

LIJIAN-1

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Unknown

Shape & HBR

Box + 2 Pan, 1.1 m

Radar Cross Section

1.038 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 4 days ago

TLE from 4 days ago

0 OBJECT A
1 66409U 25256A   26167.68551025  .00000392  00000-0  11204-3 0  9994
2 66409  98.2552 233.8767 0013718 343.8275  16.2480 14.50200142 31820

Epoch: 2026-06-16T16:27Z

TLE epoch observation values (Epoch: 2026-06-16T16:27:08.085Z)

Latitude

-0.00002°

Longitude

82.13902°

Altitude

718.609 km

Speed

7.501 km/s

True Right ascension

15h 35m 30s

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

07:15:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

731.832 km

Perigee altitude

712.352 km

Semi-major axis

7,100.229 km

Eccentricity

0.00137

Inclination

98.2552°

RAAN

233.8767°

Arg. of periapsis

343.8275°

True anomaly

16.29206°

Mean anomaly

16.248°

Eccentric anomaly

16.27002°

Mean motion

3.62773 °/min

Orbital period

99.24 mins

BSTAR

0.00011204

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Other satellites on launch #256 in the year 2025 (2025-11-09 UTC)

ZK-1A R/B, 66411

OBJECT B, 66410

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OBJECT A 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.
8 mins	2026-06-21 04:12:28.225Z	155.387° SSE	2026-06-21 04:16:28.225Z	72.464° E	43.04°	2026-06-21 04:20:28.225Z	353.457° N
5 mins	2026-06-21 16:17:28.225Z	59.599° ENE	2026-06-21 16:19:28.225Z	89.797° E	19.507°	2026-06-21 16:22:28.225Z	133.986° SE
8 mins	2026-06-21 17:54:28.225Z	352.984° N	2026-06-21 17:58:28.225Z	274.639° WNW	32.823°	2026-06-21 18:02:28.225Z	220.621° 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 A, 66409 on other resources

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OBJECT A, 66409

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 days ago

TLE from 4 days ago

TLE epoch observation values (Epoch: 2026-06-16T16:27:08.085Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #256 in the year 2025 (2025-11-09 UTC)

OBJECT A Visibility forecast

Co-orbital & Co-planar RSOs

Check out OBJECT A, 66409 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 days ago