CZ-3B R/B, 66991

Orbit data source: Space-Track

CZ-3B R/B, 66991 is space debris in HEO originally from a launch on Tue, 09 Dec 2025 UTC launched from the Xichang Space Center, China (XSC). 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/66991?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

66991, 2025-290B

Orbit

HEO

Country

CN / PRC

Related business

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

Manufacturer

CALT

Mission

Spacecraft

Bus & Motor

CZ-3A STAGE 3, Unknown motor

Mass

~2,800 kg wet, ~2,800 kg dry

Launch date (UTC)

2025-12-09 (3 weeks ago)

Launch vehicle

Unknown

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

RCS unknown

Expand to show TLE details & history
Last TLE update: 2 weeks ago

TLE from 2 weeks ago

0 CZ-3B R/B
1 66991U 25290B   25349.72468800  .00057911 -20514-6  75879-3 0  9998
2 66991  28.4636 300.4666 7240884 182.7002 168.6250  2.38388611   165

Epoch: 2025-12-15T17:23Z

TLE epoch observation values (Epoch: 2025-12-15T17:23:33.043Z)

Latitude

0.00003°

Longitude

-45.0485°

Altitude

34,313.73 km

Speed

1.659 km/s

True Right ascension

20h 01m 49s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

16:16:10

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

34,438.752 km

Perigee altitude

153.925 km

Semi-major axis

23,674.476 km

Eccentricity

0.72409

Inclination

28.4636°

RAAN

300.4666°

Arg. of periapsis

182.7002°

True anomaly

177.35574°

Mean anomaly

168.625°

Eccentric anomaly

173.39617°

Mean motion

0.59583 °/min

Orbital period

604.2 mins

BSTAR

0.00075879

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Other satellites on launch #290 in the year 2025 (2025-12-09 UTC)

TJS-22, 66990

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CZ-3B 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.
526 mins	2026-01-01 16:41:17.766Z	172.315° S	2026-01-02 01:01:17.766Z	180.821° SSW	43.276°	2026-01-02 01:27:17.766Z	104.58° ESE
55 mins	2026-01-02 15:36:17.766Z	104.253° ESE	2026-01-02 16:31:17.766Z	106.154° ESE	17.624°	2026-01-02 16:31:17.766Z	106.154° ESE

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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 CZ-3B R/B, 66991 on other resources

View CZ-3B R/B, 66991 on Heavens-Above

View CZ-3B R/B, 66991 on Keep Track

View CZ-3B R/B, 66991 on Celestrak

View CZ-3B R/B, 66991 on Gunter's Space Page

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

CZ-3B R/B, 66991

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 weeks ago

TLE from 2 weeks ago

TLE epoch observation values (Epoch: 2025-12-15T17:23:33.043Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #290 in the year 2025 (2025-12-09 UTC)

CZ-3B R/B Visibility forecast

Co-orbital & Co-planar RSOs

Check out CZ-3B R/B, 66991 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 weeks ago