Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.319688E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T13:34:51+0800
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    1 Object 1

    AOE ID 29857
    NORAD ID 29857
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65978
    NORAD ID 65978
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB SDA_1668
    Time of Closest Approach 2026-10-21T07:02:46+0000
    Collision Probability (Pc) 3.319688E-6
    Conjunction Distance (km) 1.889 km
    Relative Speed (km/s) 14.733 km/s
    Conjunction Risk Parameters R (Radial): 1.869 | I (In-track): -0.005 | C (Cross-track): -0.27
    Collision Risk Index (CRI) 0.45
    X Position (km) 815.934 816.409
    Position Y (km) 2727.469 2728.188
    Position Z (km) -6756.432 -6758.112
    Velocity X (km/s) 0.883 -0.959
    Velocity Y (km/s) -6.768 6.811
    Velocity Z (km/s) -2.778 2.633

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB SDA_1668
    Semimajor Axis (a) 7332.106 km 7326.991 km
    Eccentricity (e) 0.019030 0.000221
    Inclination (i) 98.4388° 81.2968°
    RAAN 273.2806° 95.0448°
    Perigee Argument 162.7846° 224.5178°
    Mean Anomaly (M) 197.9884° 135.5801°
    Apogee 1093.498 km 950.471 km
    Perigee 814.440 km 947.237 km
    Orbit Epoch 2026-10-20T12:29:44+0000 2026-10-20T20:58:11+0000

    FENGYUN 1C DEB & SDA_1668 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & SDA_1668 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & SDA_1668 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & SDA_1668 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SDA_1668Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SDA_1668Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data