Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    8.279399E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T11:43:19+0800
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    1 Object 1

    AOE ID 12291
    NORAD ID 12291
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    Name HEAD-1
    AOE ID 43011
    NORAD ID 43011
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB HEAD-1
    Time of Closest Approach 2026-09-16T10:44:09+0000
    Collision Probability (Pc) 8.279399E-6
    Conjunction Distance (km) 1.406 km
    Relative Speed (km/s) 14.706 km/s
    Conjunction Risk Parameters R (Radial): 0.476 | I (In-track): 0.21 | C (Cross-track): 1.307
    Collision Risk Index (CRI) 0.53
    X Position (km) -1489.617 -1488.423
    Position Y (km) 6870.56 6871.297
    Position Z (km) 1426.756 1426.843
    Velocity X (km/s) 1.512 0.846
    Velocity Y (km/s) -1.196 1.684
    Velocity Z (km/s) 7.191 -7.215

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB HEAD-1
    Semimajor Axis (a) 7150.348 km 7173.736 km
    Eccentricity (e) 0.004130 0.000885
    Inclination (i) 99.2759° 98.9536°
    RAAN 100.9965° 277.6965°
    Perigee Argument 158.1729° 256.3084°
    Mean Anomaly (M) 256.8418° 103.7112°
    Apogee 801.740 km 801.945 km
    Perigee 742.682 km 789.253 km
    Orbit Epoch 2026-09-13T12:41:40+0000 2026-09-13T19:46:00+0000

    DELTA 1 DEB & HEAD-1 Collision Probability (Pc) Trend

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

    DELTA 1 DEB & HEAD-1 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & HEAD-1 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HEAD-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    HEAD-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data