Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.819096E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T01:44:02+0800
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    1 Object 1

    AOE ID 37181
    NORAD ID 37181
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 53703
    NORAD ID 53703
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B R/B STARLINK-4731
    Time of Closest Approach 2026-10-19T22:53:31+0000
    Collision Probability (Pc) 3.819096E-6
    Conjunction Distance (km) 1.53 km
    Relative Speed (km/s) 7.035 km/s
    Conjunction Risk Parameters R (Radial): 1.517 | I (In-track): -0.176 | C (Cross-track): 0.092
    Collision Risk Index (CRI) 0.47
    X Position (km) 5275.867 5277.107
    Position Y (km) -2280.077 -2280.681
    Position Z (km) 3698.748 3699.409
    Velocity X (km/s) -4.261 -0.506
    Velocity Y (km/s) 0.499 6.152
    Velocity Z (km/s) 6.353 4.5

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B R/B STARLINK-4731
    Semimajor Axis (a) 6885.907 km 6840.877 km
    Eccentricity (e) 0.007210 0.000118
    Inclination (i) 97.7699° 53.1594°
    RAAN 340.7817° 311.7765°
    Perigee Argument 44.0571° 93.2071°
    Mean Anomaly (M) 316.6377° 266.9067°
    Apogee 557.419 km 463.551 km
    Perigee 458.121 km 461.929 km
    Orbit Epoch 2026-10-19T02:12:03+0000 2026-10-19T02:23:06+0000

    CZ-4B R/B & STARLINK-4731 Collision Probability (Pc) Trend

    CZ-4B R/B & STARLINK-4731 Collision Probability (Pc) TrendNot Available

    CZ-4B R/B & STARLINK-4731 Miss Distance (Miss Distance) Trend

    CZ-4B R/B & STARLINK-4731 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-4731Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4731Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B R/B

    No nearby objects data