Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.707293E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T08:56:33+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 63948
    NORAD ID 63948
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C R/B STARLINK-33983
    Time of Closest Approach 2026-10-20T16:48:44+0000
    Collision Probability (Pc) 2.707293E-6
    Conjunction Distance (km) 2.053 km
    Relative Speed (km/s) 15.064 km/s
    Conjunction Risk Parameters R (Radial): -1.088 | I (In-track): 0.272 | C (Cross-track): -1.718
    Collision Risk Index (CRI) 0.44
    X Position (km) -3745.458 -3743.486
    Position Y (km) -3193.34 -3193.806
    Position Z (km) 4766.114 4765.786
    Velocity X (km/s) 3.02 -1.196
    Velocity Y (km/s) 4.503 -5.795
    Velocity Z (km/s) 5.338 -4.814

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B STARLINK-33983
    Semimajor Axis (a) 6821.852 km 6852.821 km
    Eccentricity (e) 0.006029 0.000361
    Inclination (i) 97.9644° 69.9985°
    RAAN 226.6772° 64.6521°
    Perigee Argument 194.1093° 268.9093°
    Mean Anomaly (M) 165.8471° 91.1669°
    Apogee 484.847 km 477.160 km
    Perigee 402.583 km 472.208 km
    Orbit Epoch 2026-10-19T06:19:39+0000 2026-10-19T08:51:45+0000

    CZ-4C R/B & STARLINK-33983 Collision Probability (Pc) Trend

    CZ-4C R/B & STARLINK-33983 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & STARLINK-33983 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & STARLINK-33983 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-33983Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33983Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data