Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.759288E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T20:57:54+0800
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    1 Object 1

    AOE ID 21452
    NORAD ID 21452
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 69117
    NORAD ID 69117
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB QIANFAN-158
    Time of Closest Approach 2026-09-05T13:31:39+0000
    Collision Probability (Pc) 2.759288E-6
    Conjunction Distance (km) 1.914 km
    Relative Speed (km/s) 11.67 km/s
    Conjunction Risk Parameters R (Radial): -0.694 | I (In-track): -1.09 | C (Cross-track): 1.411
    Collision Risk Index (CRI) 0.44
    X Position (km) 1199.064 1199.681
    Position Y (km) 426.186 427.759
    Position Z (km) 7329.043 7328.145
    Velocity X (km/s) 3.447 -7.005
    Velocity Y (km/s) -6.678 -1.719
    Velocity Z (km/s) -0.288 1.244

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB QIANFAN-158
    Semimajor Axis (a) 7886.120 km 7446.598 km
    Eccentricity (e) 0.057691 0.000183
    Inclination (i) 99.7484° 89.0172°
    RAAN 116.5152° 14.0830°
    Perigee Argument 109.9871° 100.5341°
    Mean Anomaly (M) 37.9831° 259.6017°
    Apogee 1962.939 km 1069.826 km
    Perigee 1053.027 km 1067.096 km
    Orbit Epoch 2026-09-04T02:57:33+0000 2026-09-04T06:54:54+0000

    DELTA 1 DEB & QIANFAN-158 Collision Probability (Pc) Trend

    DELTA 1 DEB & QIANFAN-158 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & QIANFAN-158 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & QIANFAN-158 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-158Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-158Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data