Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.453668E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T13:46:50+0800
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    1 Object 1

    AOE ID 31758
    NORAD ID 31758
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 42957
    NORAD ID 42957
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB IRIDIUM 122
    Time of Closest Approach 2026-10-21T12:06:31+0000
    Collision Probability (Pc) 7.453668E-7
    Conjunction Distance (km) 2.989 km
    Relative Speed (km/s) 5.124 km/s
    Conjunction Risk Parameters R (Radial): 1.735 | I (In-track): 2.312 | C (Cross-track): 0.762
    Collision Risk Index (CRI) 0.32
    X Position (km) -1653.137 -1655.051
    Position Y (km) 1347.587 1349.682
    Position Z (km) 6820.024 6820.963
    Velocity X (km/s) -2.599 -6.392
    Velocity Y (km/s) 6.631 3.186
    Velocity Z (km/s) -2.157 -2.177

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB IRIDIUM 122
    Semimajor Axis (a) 7105.071 km 7155.808 km
    Eccentricity (e) 0.029056 0.000211
    Inclination (i) 98.0618° 86.3975°
    RAAN 292.8517° 332.6820°
    Perigee Argument 213.6276° 92.5168°
    Mean Anomaly (M) 144.6183° 267.6270°
    Apogee 933.377 km 779.181 km
    Perigee 520.491 km 776.161 km
    Orbit Epoch 2026-10-20T10:45:07+0000 2026-10-20T20:32:31+0000

    FENGYUN 1C DEB & IRIDIUM 122 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & IRIDIUM 122 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & IRIDIUM 122 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & IRIDIUM 122 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 122Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 122Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data