Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.734707E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-10T20:44:52+0800
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    1 Object 1

    AOE ID 21498
    NORAD ID 21498
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 67437
    NORAD ID 67437
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB HULIANWANG DIGUI-139
    Time of Closest Approach 2026-10-11T09:11:54+0000
    Collision Probability (Pc) 4.734707E-6
    Conjunction Distance (km) 1.651 km
    Relative Speed (km/s) 13.899 km/s
    Conjunction Risk Parameters R (Radial): -0.856 | I (In-track): 0.438 | C (Cross-track): 1.341
    Collision Risk Index (CRI) 0.49
    X Position (km) 6621.946 6620.821
    Position Y (km) 244.478 245.67
    Position Z (km) -3579.988 -3580.185
    Velocity X (km/s) -3.237 2.161
    Velocity Y (km/s) -1.525 5.398
    Velocity Z (km/s) -6.404 4.372

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB HULIANWANG DIGUI-139
    Semimajor Axis (a) 7658.430 km 7527.425 km
    Eccentricity (e) 0.026137 0.000002
    Inclination (i) 99.7005° 50.0046°
    RAAN 186.1588° 38.7813°
    Perigee Argument 162.1867° 46.7124°
    Mean Anomaly (M) 261.8847° 313.3749°
    Apogee 1480.460 km 1149.301 km
    Perigee 1080.126 km 1149.275 km
    Orbit Epoch 2026-10-09T23:05:58+0000 2026-10-08T16:26:10+0000

    DELTA 1 DEB & HULIANWANG DIGUI-139 Collision Probability (Pc) Trend

    DELTA 1 DEB & HULIANWANG DIGUI-139 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & HULIANWANG DIGUI-139 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & HULIANWANG DIGUI-139 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HULIANWANG DIGUI-139Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    HULIANWANG DIGUI-139Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data