Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.533336E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T20:31:07+0800
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    1 Object 1

    AOE ID 41039
    NORAD ID 41039
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 52541
    NORAD ID 52541
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C R/B STARLINK-3845
    Time of Closest Approach 2026-10-21T00:05:49+0000
    Collision Probability (Pc) 2.533336E-6
    Conjunction Distance (km) 2.099 km
    Relative Speed (km/s) 14.777 km/s
    Conjunction Risk Parameters R (Radial): 1.153 | I (In-track): 0.451 | C (Cross-track): -1.695
    Collision Risk Index (CRI) 0.43
    X Position (km) 6790.711 6791.732
    Position Y (km) 688.206 689.94
    Position Z (km) -409.304 -408.707
    Velocity X (km/s) 0.502 -0.82
    Velocity Y (km/s) -0.948 4.526
    Velocity Z (km/s) 7.565 -6.097

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B STARLINK-3845
    Semimajor Axis (a) 6841.331 km 6837.845 km
    Eccentricity (e) 0.005523 0.000080
    Inclination (i) 97.4637° 53.1576°
    RAAN 3.2270° 191.9198°
    Perigee Argument 83.7159° 114.5763°
    Mean Anomaly (M) 277.0371° 245.5324°
    Apogee 500.981 km 460.258 km
    Perigee 425.407 km 459.158 km
    Orbit Epoch 2026-10-18T22:01:23+0000 2026-10-19T03:33:23+0000

    CZ-4C R/B & STARLINK-3845 Collision Probability (Pc) Trend

    CZ-4C R/B & STARLINK-3845 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & STARLINK-3845 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & STARLINK-3845 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-3845Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3845Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data