Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.733512E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T22:26:02+0800
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    1 Object 1

    AOE ID 30338
    NORAD ID 30338
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 55633
    NORAD ID 55633
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-5498
    Time of Closest Approach 2026-09-15T04:55:03+0000
    Collision Probability (Pc) 4.733512E-6
    Conjunction Distance (km) 1.623 km
    Relative Speed (km/s) 12.812 km/s
    Conjunction Risk Parameters R (Radial): -0.783 | I (In-track): 0.773 | C (Cross-track): -1.191
    Collision Risk Index (CRI) 0.49
    X Position (km) -2375.566 -2374.672
    Position Y (km) 104.602 105.319
    Position Z (km) 6524.08 6525.228
    Velocity X (km/s) -6.389 -0.435
    Velocity Y (km/s) 3.565 -7.561
    Velocity Z (km/s) -2.254 -0.036

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-5498
    Semimajor Axis (a) 7103.027 km 6950.230 km
    Eccentricity (e) 0.026375 0.000269
    Inclination (i) 98.4341° 69.9990°
    RAAN 331.4363° 92.2021°
    Perigee Argument 77.8202° 269.0004°
    Mean Anomaly (M) 311.8714° 91.0847°
    Apogee 912.231 km 573.967 km
    Perigee 537.549 km 570.219 km
    Orbit Epoch 2026-09-13T04:32:40+0000 2026-09-12T23:38:30+0000

    FENGYUN 1C DEB & STARLINK-5498 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-5498 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-5498 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-5498 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5498Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5498Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data