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 (2 months ago)

Launch vehicle

Unknown

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Cyl + 1 Nozzle, 8.0 m

Radar Cross Section

32.704 m²

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Last TLE update: 23 hours ago

TLE from 23 hours ago

0 CZ-3B R/B
1 66991U 25290B   26052.51181699  .00321189 -30053-6  16395-2 0  9992
2 66991  28.1801 271.6358 7004734 229.6769  44.3894  2.70193386  1867

Epoch: 2026-02-21T12:17Z

TLE epoch observation values (Epoch: 2026-02-21T12:17:00.987Z)

Latitude

-0.00003°

Longitude

-64.06182°

Altitude

13,888.418 km

Speed

4.586 km/s

True Right ascension

18h 06m 30s

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

14:00:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

30,655.469 km

Perigee altitude

145.076 km

Semi-major axis

21,778.409 km

Eccentricity

0.70047

Inclination

28.1801°

RAAN

271.6358°

Arg. of periapsis

229.6769°

True anomaly

130.26918°

Mean anomaly

44.3894°

Eccentric anomaly

84.327°

Mean motion

0.67531 °/min

Orbital period

533.09 mins

BSTAR

0.0016395

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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.
473 mins	2026-02-22 14:23:50.168Z	196.552° SSW	2026-02-22 21:17:50.168Z	193.737° SSW	43.786°	2026-02-22 22:16:50.168Z	115.79° SE

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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: 23 hours ago

TLE from 23 hours ago

TLE epoch observation values (Epoch: 2026-02-21T12:17:00.987Z)

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: 23 hours ago