Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.829768E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-02T12:05:41+0800
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    1 Object 1

    AOE ID 36225
    NORAD ID 36225
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 53775
    NORAD ID 53775
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-4722
    Time of Closest Approach 2026-09-04T04:24:15+0000
    Collision Probability (Pc) 1.829768E-6
    Conjunction Distance (km) 2.367 km
    Relative Speed (km/s) 13.341 km/s
    Conjunction Risk Parameters R (Radial): 1.91 | I (In-track): 0.664 | C (Cross-track): 1.231
    Collision Risk Index (CRI) 0.4
    X Position (km) 1512.358 1512.628
    Position Y (km) 4058.893 4056.711
    Position Z (km) -5314.896 -5314.022
    Velocity X (km/s) 3.73 -7.426
    Velocity Y (km/s) 4.714 0.794
    Velocity Z (km/s) 4.667 -1.509

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-4722
    Semimajor Axis (a) 6835.910 km 6848.899 km
    Eccentricity (e) 0.002169 0.000132
    Inclination (i) 98.8285° 53.1604°
    RAAN 55.0693° 194.6658°
    Perigee Argument 129.9048° 90.8486°
    Mean Anomaly (M) 230.4102° 269.2667°
    Apogee 472.604 km 471.667 km
    Perigee 442.942 km 469.857 km
    Orbit Epoch 2026-09-01T06:17:04+0000 2026-09-01T14:13:06+0000

    FENGYUN 1C DEB & STARLINK-4722 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-4722 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-4722 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-4722 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4722Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4722Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data