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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66991 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CALT
Mission
Spacecraft
Bus & Motor
CZ-3A STAGE 3, Unknown motor
Mass
~2,800 kg wet, ~2,800 kg dry
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Cyl + 1 Nozzle, 6.4 m
Radar Cross Section
32.704 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 7 hours ago
TLE from 7 hours ago
0 CZ-3B R/B
1 66991U 25290B 26285.97307873 .00240147 30179-6 27336-2 0 9993
2 66991 28.0110 151.7772 6712187 65.6489 348.4817 3.09790091 8736Epoch: 2026-10-12T23:21Z
TLE epoch observation values (Epoch: 2026-10-12T23:21:14.002Z)
Latitude
0.00007°
Longitude
140.00041°
Altitude
2,150.749 km
Speed
8.568 km/s
True Right ascension
10h 07m 24s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
00:23:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
26,847.24 km
Perigee altitude
158.34 km
Semi-major axis
19,880.927 km
Eccentricity
0.67122
Inclination
28.011°
RAAN
151.7772°
Arg. of periapsis
65.6489°
True anomaly
294.64485°
Mean anomaly
348.4817°
Eccentric anomaly
328.23734°
Mean motion
0.77426 °/min
Orbital period
464.96 mins
BSTAR
0.0027336
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Other satellites on launch #290 in the year 2025 (2025-12-09 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-10-13 22:55:44.800Z | 219.874° SW | 2026-10-13 22:58:44.800Z | 167.937° S | 23.728° | 2026-10-13 23:08:44.800Z | 118.854° SE |
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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