Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.558413E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T17:43:10+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 58946
    NORAD ID 58946
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B R/B STARLINK-31331
    Time of Closest Approach 2026-10-30T07:05:18+0000
    Collision Probability (Pc) 1.558413E-6
    Conjunction Distance (km) 2.242 km
    Relative Speed (km/s) 8.505 km/s
    Conjunction Risk Parameters R (Radial): -1.501 | I (In-track): -1.376 | C (Cross-track): 0.937
    Collision Risk Index (CRI) 0.39
    X Position (km) 4733.332 4733.146
    Position Y (km) -1296.593 -1297.226
    Position Z (km) 4770.014 4767.872
    Velocity X (km/s) -5.416 -1.131
    Velocity Y (km/s) -0.012 6.929
    Velocity Z (km/s) 5.407 3

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B R/B STARLINK-31331
    Semimajor Axis (a) 6885.715 km 6848.833 km
    Eccentricity (e) 0.007122 0.000129
    Inclination (i) 97.7673° 53.1608°
    RAAN 349.7904° 309.8281°
    Perigee Argument 13.9949° 96.8013°
    Mean Anomaly (M) 346.3236° 263.3135°
    Apogee 556.618 km 471.581 km
    Perigee 458.538 km 469.811 km
    Orbit Epoch 2026-10-27T20:24:56+0000 2026-10-27T17:45:05+0000

    CZ-4B R/B & STARLINK-31331 Collision Probability (Pc) Trend

    CZ-4B R/B & STARLINK-31331 Collision Probability (Pc) TrendNot Available

    CZ-4B R/B & STARLINK-31331 Miss Distance (Miss Distance) Trend

    CZ-4B R/B & STARLINK-31331 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-31331Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31331Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B R/B

    No nearby objects data