Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.743853E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:04:25+0800
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    1 Object 1

    AOE ID 28415
    NORAD ID 28415
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 53671
    NORAD ID 53671
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B R/B STARLINK-4440
    Time of Closest Approach 2026-10-27T16:42:35+0000
    Collision Probability (Pc) 5.743853E-6
    Conjunction Distance (km) 1.575 km
    Relative Speed (km/s) 14.871 km/s
    Conjunction Risk Parameters R (Radial): -0.683 | I (In-track): 0.32 | C (Cross-track): 1.383
    Collision Risk Index (CRI) 0.5
    X Position (km) 3802.137 3801.344
    Position Y (km) -1182.467 -1183.706
    Position Z (km) -5576.931 -5576.37
    Velocity X (km/s) 5.292 -6.271
    Velocity Y (km/s) -3.397 0.211
    Velocity Z (km/s) 4.304 -4.322

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B R/B STARLINK-4440
    Semimajor Axis (a) 6847.163 km 6843.676 km
    Eccentricity (e) 0.002841 0.000188
    Inclination (i) 97.3244° 97.2834°
    RAAN 331.7093° 172.4026°
    Perigee Argument 222.1615° 91.2882°
    Mean Anomaly (M) 137.7442° 268.8576°
    Apogee 488.481 km 466.829 km
    Perigee 449.571 km 464.249 km
    Orbit Epoch 2026-10-27T01:16:39+0000 2026-10-27T01:35:34+0000

    CZ-4B R/B & STARLINK-4440 Collision Probability (Pc) Trend

    CZ-4B R/B & STARLINK-4440 Collision Probability (Pc) TrendNot Available

    CZ-4B R/B & STARLINK-4440 Miss Distance (Miss Distance) Trend

    CZ-4B R/B & STARLINK-4440 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-4440Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4440Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B R/B

    No nearby objects data