Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.557304E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T20:40:53+0800
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    1 Object 1

    AOE ID 31287
    NORAD ID 31287
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 43927
    NORAD ID 43927
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB IRIDIUM 172
    Time of Closest Approach 2026-10-31T08:22:55+0000
    Collision Probability (Pc) 1.557304E-6
    Conjunction Distance (km) 2.418 km
    Relative Speed (km/s) 10.908 km/s
    Conjunction Risk Parameters R (Radial): -0.076 | I (In-track): -1.644 | C (Cross-track): -1.769
    Collision Risk Index (CRI) 0.39
    X Position (km) -909.202 -911.484
    Position Y (km) 822.24 822.901
    Position Z (km) -7059.196 -7058.747
    Velocity X (km/s) 6.4 3.232
    Velocity Y (km/s) 3.803 -6.604
    Velocity Z (km/s) -0.399 -1.188

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB IRIDIUM 172
    Semimajor Axis (a) 7169.854 km 7155.806 km
    Eccentricity (e) 0.002843 0.000212
    Inclination (i) 99.3894° 86.3920°
    RAAN 28.4195° 297.2929°
    Perigee Argument 218.7151° 88.9112°
    Mean Anomaly (M) 141.1991° 271.2327°
    Apogee 812.104 km 779.189 km
    Perigee 771.330 km 776.149 km
    Orbit Epoch 2026-10-29T16:30:53+0000 2026-10-29T20:00:23+0000

    FENGYUN 1C DEB & IRIDIUM 172 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & IRIDIUM 172 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & IRIDIUM 172 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & IRIDIUM 172 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 172Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 172Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data