Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.51089E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T23:28:20+0800
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    1 Object 1

    Name HJ-1A
    AOE ID 33320
    NORAD ID 33320
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 55231
    NORAD ID 55231
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter HJ-1A CZ-6A DEB
    Time of Closest Approach 2026-10-28T17:49:53+0000
    Collision Probability (Pc) 1.51089E-6
    Conjunction Distance (km) 2.553 km
    Relative Speed (km/s) 12.217 km/s
    Conjunction Risk Parameters R (Radial): -2.119 | I (In-track): -0.836 | C (Cross-track): -1.15
    Collision Risk Index (CRI) 0.39
    X Position (km) -586.776 -585.285
    Position Y (km) -1569.78 -1569.85
    Position Z (km) 6768.878 6766.808
    Velocity X (km/s) -1.809 -6.431
    Velocity Y (km/s) 7.189 -3.721
    Velocity Z (km/s) 1.512 -1.464

    Orbital Parameters 国际轨道数据源

    Parameter HJ-1A CZ-6A DEB
    Semimajor Axis (a) 6994.134 km 7002.343 km
    Eccentricity (e) 0.002045 0.007018
    Inclination (i) 97.6838° 98.6209°
    RAAN 281.1073° 29.5651°
    Perigee Argument 66.2596° 168.6964°
    Mean Anomaly (M) 294.0762° 191.5843°
    Apogee 630.302 km 673.350 km
    Perigee 601.692 km 575.062 km
    Orbit Epoch 2026-10-27T05:53:07+0000 2026-10-26T16:45:05+0000

    HJ-1A & CZ-6A DEB Collision Probability (Pc) Trend

    HJ-1A & CZ-6A DEB Collision Probability (Pc) TrendNot Available

    HJ-1A & CZ-6A DEB Miss Distance (Miss Distance) Trend

    HJ-1A & CZ-6A DEB Miss Distance (Miss Distance) TrendNot Available

    HJ-1AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CZ-6A DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HJ-1ACollision Probability Trend

    Object 1 Probability TrendNot Available

    CZ-6A DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HJ-1A

    No nearby objects data