Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.65093E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-16T01:58:46+0800
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    1 Object 1

    AOE ID 21504
    NORAD ID 21504
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68133
    NORAD ID 68133
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB HULIANWANG DIGUI-159
    Time of Closest Approach 2026-10-17T04:29:28+0000
    Collision Probability (Pc) 1.65093E-6
    Conjunction Distance (km) 2.51 km
    Relative Speed (km/s) 13.503 km/s
    Conjunction Risk Parameters R (Radial): 0.018 | I (In-track): 0.975 | C (Cross-track): -2.312
    Collision Risk Index (CRI) 0.39
    X Position (km) -4987.487 -4987.448
    Position Y (km) -2567.05 -2569.311
    Position Z (km) -5025.566 -5024.477
    Velocity X (km/s) -5.234 5.052
    Velocity Y (km/s) -0.783 -4.457
    Velocity Z (km/s) 5.2 -2.738

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB HULIANWANG DIGUI-159
    Semimajor Axis (a) 7848.112 km 7527.446 km
    Eccentricity (e) 0.054536 0.000092
    Inclination (i) 99.8269° 50.0029°
    RAAN 196.6844° 345.6982°
    Perigee Argument 278.4394° 168.6216°
    Mean Anomaly (M) 242.0622° 191.4678°
    Apogee 1897.979 km 1150.003 km
    Perigee 1041.971 km 1148.615 km
    Orbit Epoch 2026-10-15T05:31:31+0000 2026-10-15T04:22:27+0000

    DELTA 1 DEB & HULIANWANG DIGUI-159 Collision Probability (Pc) Trend

    DELTA 1 DEB & HULIANWANG DIGUI-159 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & HULIANWANG DIGUI-159 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & HULIANWANG DIGUI-159 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HULIANWANG DIGUI-159Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    HULIANWANG DIGUI-159Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data