Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.298214E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-15T21:52:59+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 4991
    NORAD ID 4991
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69398
    NORAD ID 69398
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter THORAD AGENA D DEB QIANFAN-181
    Time of Closest Approach 2026-10-16T05:49:14+0000
    Collision Probability (Pc) 1.298214E-6
    Conjunction Distance (km) 2.936 km
    Relative Speed (km/s) 13.387 km/s
    Conjunction Risk Parameters R (Radial): 0.48 | I (In-track): 1.156 | C (Cross-track): 2.656
    Collision Risk Index (CRI) 0.37
    X Position (km) -1681.574 -1680.09
    Position Y (km) 181.707 184.118
    Position Z (km) -7260.677 -7261.453
    Velocity X (km/s) -3.785 6.988
    Velocity Y (km/s) 6.156 -1.329
    Velocity Z (km/s) 1.019 -1.651

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB QIANFAN-181
    Semimajor Axis (a) 7437.504 km 7446.614 km
    Eccentricity (e) 0.002086 0.000215
    Inclination (i) 100.2263° 89.0049°
    RAAN 122.1009° 349.5658°
    Perigee Argument 148.7369° 100.3867°
    Mean Anomaly (M) 28.9346° 259.7527°
    Apogee 1074.882 km 1070.079 km
    Perigee 1043.852 km 1066.875 km
    Orbit Epoch 2026-10-15T08:02:13+0000 2026-10-15T05:26:44+0000

    THORAD AGENA D DEB & QIANFAN-181 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & QIANFAN-181 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & QIANFAN-181 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & QIANFAN-181 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-181Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-181Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data