Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.378709E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-16T21:00:11+0800
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    1 Object 1

    AOE ID 26121
    NORAD ID 26121
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 58417
    NORAD ID 58417
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-30955
    Time of Closest Approach 2026-10-16T17:48:43+0000
    Collision Probability (Pc) 1.378709E-6
    Conjunction Distance (km) 2.884 km
    Relative Speed (km/s) 14.285 km/s
    Conjunction Risk Parameters R (Radial): 2.883 | I (In-track): -0.005 | C (Cross-track): 0.052
    Collision Risk Index (CRI) 0.38
    X Position (km) 4710.586 4712.605
    Position Y (km) 4531.247 4533.12
    Position Z (km) 2068.456 2069.313
    Velocity X (km/s) -0.82 -2.987
    Velocity Y (km/s) -2.462 5.244
    Velocity Z (km/s) 7.167 -4.665

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-30955
    Semimajor Axis (a) 6845.534 km 6861.150 km
    Eccentricity (e) 0.002848 0.000071
    Inclination (i) 98.6777° 43.0029°
    RAAN 45.5075° 246.4818°
    Perigee Argument 141.4794° 262.6761°
    Mean Anomaly (M) 218.8484° 97.4011°
    Apogee 486.893 km 483.498 km
    Perigee 447.901 km 482.528 km
    Orbit Epoch 2026-10-15T18:14:02+0000 2026-10-16T06:09:28+0000

    CZ-4 DEB & STARLINK-30955 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-30955 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-30955 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-30955 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30955Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30955Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data