Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.172343E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T01:35:41+0800
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    1 Object 1

    AOE ID 33410
    NORAD ID 33410
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 53251
    NORAD ID 53251
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B R/B STARLINK-4129
    Time of Closest Approach 2026-10-20T23:05:29+0000
    Collision Probability (Pc) 1.172343E-4
    Conjunction Distance (km) 0.61 km
    Relative Speed (km/s) 13.293 km/s
    Conjunction Risk Parameters R (Radial): -0.17 | I (In-track): 0.296 | C (Cross-track): 0.506
    Collision Risk Index (CRI) 0.76
    X Position (km) -4330.689 -4330.3
    Position Y (km) 251.851 251.397
    Position Z (km) -5297.143 -5297.262
    Velocity X (km/s) 5.828 -2.313
    Velocity Y (km/s) 1.294 -7.096
    Velocity Z (km/s) -4.771 1.555

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B R/B STARLINK-4129
    Semimajor Axis (a) 6873.921 km 6840.905 km
    Eccentricity (e) 0.008264 0.000133
    Inclination (i) 97.7666° 53.1593°
    RAAN 4.4551° 250.8249°
    Perigee Argument 183.7956° 100.2302°
    Mean Anomaly (M) 176.2664° 259.8851°
    Apogee 552.589 km 463.679 km
    Perigee 438.979 km 461.857 km
    Orbit Epoch 2026-10-19T05:05:39+0000 2026-10-19T06:46:25+0000

    CZ-4B R/B & STARLINK-4129 Collision Probability (Pc) Trend

    CZ-4B R/B & STARLINK-4129 Collision Probability (Pc) TrendNot Available

    CZ-4B R/B & STARLINK-4129 Miss Distance (Miss Distance) Trend

    CZ-4B R/B & STARLINK-4129 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-4129Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4129Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B R/B

    No nearby objects data