Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.920445E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-23T11:48:24+0800
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    1 Object 1

    AOE ID 31485
    NORAD ID 31485
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 68648
    NORAD ID 68648
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB QIANFAN-121
    Time of Closest Approach 2026-10-24T06:42:10+0000
    Collision Probability (Pc) 2.920445E-6
    Conjunction Distance (km) 1.847 km
    Relative Speed (km/s) 10.975 km/s
    Conjunction Risk Parameters R (Radial): 1.239 | I (In-track): 0.936 | C (Cross-track): -1.001
    Collision Risk Index (CRI) 0.44
    X Position (km) 901.784 901.626
    Position Y (km) -1372.065 -1373.611
    Position Z (km) -7271.219 -7272.216
    Velocity X (km/s) -6.328 4.388
    Velocity Y (km/s) -3.673 -5.611
    Velocity Z (km/s) 0.244 1.605

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB QIANFAN-121
    Semimajor Axis (a) 7481.466 km 7446.625 km
    Eccentricity (e) 0.044838 0.000205
    Inclination (i) 102.7028° 88.9814°
    RAAN 208.4270° 307.9702°
    Perigee Argument 359.7699° 90.6157°
    Mean Anomaly (M) 0.3155° 269.5228°
    Apogee 1438.783 km 1070.011 km
    Perigee 767.875 km 1066.965 km
    Orbit Epoch 2026-10-22T13:57:54+0000 2026-10-22T14:12:11+0000

    FENGYUN 1C DEB & QIANFAN-121 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & QIANFAN-121 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & QIANFAN-121 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & QIANFAN-121 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-121Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-121Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data