54221 · CZ-6 DEB

debris — CZ-6A upper stage breakup, 2022

All objects

Orbit

Apogee604km

Perigee488km

Inclination97.5°

RCS0.026m²

Characterization

Object type: debris
Origin: CZ-6A upper stage breakup, 2022
Radar cross-section: 0.026 m²
Active conjunctions: 0

Derived elements

two-body · vis-viva

Semi-major axis6924.1km

Eccentricity0.00838

Period95.57min

Mean motion15.0680rev/day

Velocity at perigee7.651km/s

Velocity at apogee7.524km/s

LEO · computed from the catalogued apsides with μ = 398600.4418 km³/s² and R⊕ = 6378.137 km (WGS-84).

Secular perturbations

J2 oblateness

Nodal regression0.9758deg/day

Apsidal rotation-3.4194deg/day

Ω̇ node · ω̇ argument of perigee, secular rates from the J2 term.

The node regresses at 0.9856 deg/day, so this orbit is sun-synchronous — its geometry against the fleet's own sun-synchronous planes repeats rather than drifting apart, which is why repeat conjunctions with this object are common.

Orbit determination

general perturbations

PropagatorSGP4

Epoch age11.3h

Observation arc4.8d

Inferred mass8.52kg

Ballistic coeff.148.9kg/m²

Covariance delivered: none

General-perturbations fit — an SGP4 mean-element set. The analytic theory carries no formal covariance, so screening substitutes a modelled one and the resulting Pc is correspondingly softer.

Conjunctions against the fleet

0 active

This object is in the screening catalog but has no active conjunctions against the fleet.