ZK-1A R/B, 66411

Orbit data source: Space-Track

ZK-1A R/B, 66411 is space debris in SSO originally from a launch on Sun, 09 Nov 2025 UTC launched from the Jiuquan Satellite Launch Center, China (JSC). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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Iframe URL

https://www.satcat.com/sats-embedded/66411?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66411, 2025-256C

Orbit

SSO

Country

CN / PRC

Related business

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

Manufacturer

CAS

Mission

Spacecraft

Bus & Motor

Unknown

Mass

500 kg wet, 500 kg dry

Launch date (UTC)

2025-11-09 (7 months ago)

Launch vehicle

Unknown

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl, 8.0 m

Radar Cross Section

5.880 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 ZK-1A R/B
1 66411U 25256C   26171.22524247  .00007184  00000-0  28205-3 0  9993
2 66411  98.3003 258.5621 0209513 332.1855  26.8291 15.08114963 33551

Epoch: 2026-06-20T05:24Z

TLE epoch observation values (Epoch: 2026-06-20T05:24:20.949Z)

Latitude

-0.00001°

Longitude

-90.96811°

Altitude

416.24 km

Speed

7.732 km/s

True Right ascension

17h 14m 14s

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

07:18:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

683.903 km

Perigee altitude

394.058 km

Semi-major axis

6,917.117 km

Eccentricity

0.02095

Inclination

98.3003°

RAAN

258.5621°

Arg. of periapsis

332.1855°

True anomaly

27.93851°

Mean anomaly

26.8291°

Eccentric anomaly

27.38118°

Mean motion

3.77273 °/min

Orbital period

95.42 mins

BSTAR

0.00028205

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

OBJECT A, 66409

OBJECT B, 66410

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ZK-1A R/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.
6 mins	2026-06-21 05:25:45.058Z	135.952° SSE	2026-06-21 05:27:45.058Z	92.938° ESE	31.499°	2026-06-21 05:31:45.058Z	1.612° NNE
8 mins	2026-06-21 18:35:45.058Z	20.383° NNE	2026-06-21 18:38:45.058Z	65.132° ENE	42.421°	2026-06-21 18:43:45.058Z	186.341° 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 ZK-1A R/B, 66411 on other resources

View ZK-1A R/B, 66411 on Heavens-Above

View ZK-1A R/B, 66411 on Keep Track

View ZK-1A R/B, 66411 on Celestrak

View ZK-1A R/B, 66411 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

ZK-1A R/B, 66411

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-06-20T05:24:20.949Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

ZK-1A R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out ZK-1A R/B, 66411 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago