Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.782911E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T08:56:34+0800
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    1 Object 1

    AOE ID 39211
    NORAD ID 39211
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 58243
    NORAD ID 58243
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C R/B STARLINK-30864
    Time of Closest Approach 2026-10-20T01:11:57+0000
    Collision Probability (Pc) 1.782911E-6
    Conjunction Distance (km) 2.397 km
    Relative Speed (km/s) 13.321 km/s
    Conjunction Risk Parameters R (Radial): 0.165 | I (In-track): -1.16 | C (Cross-track): 2.091
    Collision Risk Index (CRI) 0.4
    X Position (km) -4060.594 -4062.613
    Position Y (km) -3560.964 -3560.269
    Position Z (km) 4222.583 4221.495
    Velocity X (km/s) 2.604 3.352
    Velocity Y (km/s) 4.062 -6.478
    Velocity Z (km/s) 5.879 -2.232

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B STARLINK-30864
    Semimajor Axis (a) 6821.852 km 6861.205 km
    Eccentricity (e) 0.006029 0.000101
    Inclination (i) 97.9644° 43.0012°
    RAAN 226.6772° 99.4482°
    Perigee Argument 194.1093° 263.0901°
    Mean Anomaly (M) 165.8471° 96.9836°
    Apogee 484.847 km 483.759 km
    Perigee 402.583 km 482.377 km
    Orbit Epoch 2026-10-19T06:19:39+0000 2026-10-19T19:59:20+0000

    CZ-4C R/B & STARLINK-30864 Collision Probability (Pc) Trend

    CZ-4C R/B & STARLINK-30864 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & STARLINK-30864 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & STARLINK-30864 Miss Distance (Miss Distance) TrendNot Available

    CZ-4C R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30864Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30864Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data