Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.598321E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T11:55:07+0800
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    1 Object 1

    AOE ID 64873
    NORAD ID 64873
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68139
    NORAD ID 68139
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter TRACERS 2 SHIYAN 30-03
    Time of Closest Approach 2026-10-21T13:28:24+0000
    Collision Probability (Pc) 4.598321E-6
    Conjunction Distance (km) 1.637 km
    Relative Speed (km/s) 12.796 km/s
    Conjunction Risk Parameters R (Radial): 0.963 | I (In-track): -0.709 | C (Cross-track): -1.117
    Collision Risk Index (CRI) 0.48
    X Position (km) -5872.904 -5873.997
    Position Y (km) 995.581 996.774
    Position Z (km) -3616.475 -3616.227
    Velocity X (km/s) 4.016 -2.314
    Velocity Y (km/s) 0.514 -6.959
    Velocity Z (km/s) -6.386 1.848

    Orbital Parameters 国际轨道数据源

    Parameter TRACERS 2 SHIYAN 30-03
    Semimajor Axis (a) 6964.357 km 6969.715 km
    Eccentricity (e) 0.000268 0.000458
    Inclination (i) 97.6547° 34.9997°
    RAAN 353.7190° 238.4792°
    Perigee Argument 224.6847° 332.4305°
    Mean Anomaly (M) 135.4158° 27.6157°
    Apogee 588.087 km 594.771 km
    Perigee 584.353 km 588.385 km
    Orbit Epoch 2026-10-20T04:22:33+0000 2026-10-20T05:38:36+0000

    TRACERS 2 & SHIYAN 30-03 Collision Probability (Pc) Trend

    TRACERS 2 & SHIYAN 30-03 Collision Probability (Pc) TrendNot Available

    TRACERS 2 & SHIYAN 30-03 Miss Distance (Miss Distance) Trend

    TRACERS 2 & SHIYAN 30-03 Miss Distance (Miss Distance) TrendNot Available

    TRACERS 2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SHIYAN 30-03Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TRACERS 2Collision Probability Trend

    Object 1 Probability TrendNot Available

    SHIYAN 30-03Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TRACERS 2

    No nearby objects data