Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.569638E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:01:41+0800
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    1 Object 1

    AOE ID 24871
    NORAD ID 24871
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 30548
    NORAD ID 30548
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter IRIDIUM 920 FENGYUN 1C DEB
    Time of Closest Approach 2026-09-17T20:18:58+0000
    Collision Probability (Pc) 2.569638E-6
    Conjunction Distance (km) 2.091 km
    Relative Speed (km/s) 14.89 km/s
    Conjunction Risk Parameters R (Radial): 2.088 | I (In-track): 0.017 | C (Cross-track): -0.12
    Collision Risk Index (CRI) 0.43
    X Position (km) -4292.023 -4293.307
    Position Y (km) -1957.622 -1958.078
    Position Z (km) -5366.202 -5367.788
    Velocity X (km/s) 5.37 -5.752
    Velocity Y (km/s) 1.67 -0.53
    Velocity Z (km/s) -4.901 4.752

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 920 FENGYUN 1C DEB
    Semimajor Axis (a) 7130.233 km 7173.342 km
    Eccentricity (e) 0.001229 0.006432
    Inclination (i) 86.4003° 99.6758°
    RAAN 21.4866° 190.4981°
    Perigee Argument 29.2887° 273.2113°
    Mean Anomaly (M) 330.8999° 240.0865°
    Apogee 760.859 km 841.346 km
    Perigee 743.333 km 749.064 km
    Orbit Epoch 2026-09-15T07:18:04+0000 2026-09-15T07:05:18+0000

    IRIDIUM 920 & FENGYUN 1C DEB Collision Probability (Pc) Trend

    IRIDIUM 920 & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    IRIDIUM 920 & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    IRIDIUM 920 & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 920Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 920Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 920

    No nearby objects data