Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.290643E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T11:11:08+0800
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    1 Object 1

    AOE ID 64870
    NORAD ID 64870
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 65851
    NORAD ID 65851
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter TRACERS 1 SHIYAN 30 01
    Time of Closest Approach 2026-10-21T20:43:00+0000
    Collision Probability (Pc) 1.290643E-6
    Conjunction Distance (km) 2.919 km
    Relative Speed (km/s) 13.081 km/s
    Conjunction Risk Parameters R (Radial): 2.848 | I (In-track): -0.326 | C (Cross-track): -0.548
    Collision Risk Index (CRI) 0.37
    X Position (km) 6035.516 6032.938
    Position Y (km) -943.528 -942.618
    Position Z (km) 3348.148 3347.127
    Velocity X (km/s) -3.738 2.376
    Velocity Y (km/s) -0.578 6.788
    Velocity Z (km/s) 6.551 -2.364

    Orbital Parameters 国际轨道数据源

    Parameter TRACERS 1 SHIYAN 30 01
    Semimajor Axis (a) 6964.367 km 6969.753 km
    Eccentricity (e) 0.000517 0.000152
    Inclination (i) 97.6546° 34.9882°
    RAAN 353.7057° 232.4871°
    Perigee Argument 184.7238° 130.0804°
    Mean Anomaly (M) 175.3935° 230.0034°
    Apogee 589.829 km 592.679 km
    Perigee 582.631 km 590.553 km
    Orbit Epoch 2026-10-20T04:23:43+0000 2026-10-20T05:37:32+0000

    TRACERS 1 & SHIYAN 30 01 Collision Probability (Pc) Trend

    TRACERS 1 & SHIYAN 30 01 Collision Probability (Pc) TrendNot Available

    TRACERS 1 & SHIYAN 30 01 Miss Distance (Miss Distance) Trend

    TRACERS 1 & SHIYAN 30 01 Miss Distance (Miss Distance) TrendNot Available

    TRACERS 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SHIYAN 30 01Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TRACERS 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    SHIYAN 30 01Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TRACERS 1

    No nearby objects data