Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.148822E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T23:39:13+0800
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    1 Object 1

    AOE ID 21459
    NORAD ID 21459
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68652
    NORAD ID 68652
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB QIANFAN-125
    Time of Closest Approach 2026-10-29T13:27:54+0000
    Collision Probability (Pc) 4.148822E-6
    Conjunction Distance (km) 1.741 km
    Relative Speed (km/s) 14.519 km/s
    Conjunction Risk Parameters R (Radial): 1.121 | I (In-track): -0.183 | C (Cross-track): 1.32
    Collision Risk Index (CRI) 0.47
    X Position (km) 2586.389 2587.919
    Position Y (km) -3221.591 -3221.4
    Position Z (km) 6186.143 6186.951
    Velocity X (km/s) 1.906 -3.63
    Velocity Y (km/s) -5.925 4.893
    Velocity Z (km/s) -3.887 4.057

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB QIANFAN-125
    Semimajor Axis (a) 7481.998 km 7446.624 km
    Eccentricity (e) 0.005231 0.000201
    Inclination (i) 99.6849° 88.9807°
    RAAN 111.8010° 307.4868°
    Perigee Argument 143.7590° 88.9381°
    Mean Anomaly (M) 336.5530° 271.2000°
    Apogee 1143.002 km 1069.985 km
    Perigee 1064.720 km 1066.989 km
    Orbit Epoch 2026-10-27T07:45:13+0000 2026-10-27T06:05:08+0000

    DELTA 1 DEB & QIANFAN-125 Collision Probability (Pc) Trend

    DELTA 1 DEB & QIANFAN-125 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & QIANFAN-125 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & QIANFAN-125 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-125Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-125Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data