Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.506773E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T12:54:40+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 44616
    NORAD ID 44616
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 55644
    NORAD ID 55644
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C DEB STARLINK-5502
    Time of Closest Approach 2026-10-17T11:12:39+0000
    Collision Probability (Pc) 7.506773E-7
    Conjunction Distance (km) 2.993 km
    Relative Speed (km/s) 5.206 km/s
    Conjunction Risk Parameters R (Radial): -2.59 | I (In-track): -1.405 | C (Cross-track): -0.519
    Collision Risk Index (CRI) 0.33
    X Position (km) -4853.566 -4852.833
    Position Y (km) -593.186 -592.856
    Position Z (km) -4949.225 -4946.343
    Velocity X (km/s) 5.064 5.113
    Velocity Y (km/s) 2.089 -3.085
    Velocity Z (km/s) -5.218 -4.647

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C DEB STARLINK-5502
    Semimajor Axis (a) 6953.511 km 6950.205 km
    Eccentricity (e) 0.000433 0.000321
    Inclination (i) 97.7903° 69.9990°
    RAAN 13.9589° 346.7940°
    Perigee Argument 237.7721° 272.4201°
    Mean Anomaly (M) 122.3082° 87.6590°
    Apogee 578.385 km 574.302 km
    Perigee 572.363 km 569.834 km
    Orbit Epoch 2026-10-16T11:45:01+0000 2026-10-16T21:22:24+0000

    CZ-4C DEB & STARLINK-5502 Collision Probability (Pc) Trend

    CZ-4C DEB & STARLINK-5502 Collision Probability (Pc) TrendNot Available

    CZ-4C DEB & STARLINK-5502 Miss Distance (Miss Distance) Trend

    CZ-4C DEB & STARLINK-5502 Miss Distance (Miss Distance) TrendNot Available

    CZ-4C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5502Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5502Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C DEB

    No nearby objects data