Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.307781E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T11:54:35+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 68140
    NORAD ID 68140
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter TRACERS 1 SHIYAN 30-04
    Time of Closest Approach 2026-10-21T15:54:15+0000
    Collision Probability (Pc) 2.307781E-6
    Conjunction Distance (km) 2.104 km
    Relative Speed (km/s) 12.832 km/s
    Conjunction Risk Parameters R (Radial): -1.149 | I (In-track): -0.935 | C (Cross-track): 1.494
    Collision Risk Index (CRI) 0.42
    X Position (km) 5886.699 5886.096
    Position Y (km) -984.59 -985.838
    Position Z (km) 3591.552 3589.969
    Velocity X (km/s) -4.004 2.326
    Velocity Y (km/s) -0.522 6.948
    Velocity Z (km/s) 6.397 -1.897

    Orbital Parameters 国际轨道数据源

    Parameter TRACERS 1 SHIYAN 30-04
    Semimajor Axis (a) 6964.367 km 6969.741 km
    Eccentricity (e) 0.000517 0.000226
    Inclination (i) 97.6546° 34.9913°
    RAAN 353.7057° 238.3539°
    Perigee Argument 184.7238° 348.6978°
    Mean Anomaly (M) 175.3935° 11.3676°
    Apogee 589.829 km 593.180 km
    Perigee 582.631 km 590.028 km
    Orbit Epoch 2026-10-20T04:23:43+0000 2026-10-20T05:39:45+0000

    TRACERS 1 & SHIYAN 30-04 Collision Probability (Pc) Trend

    TRACERS 1 & SHIYAN 30-04 Collision Probability (Pc) TrendNot Available

    TRACERS 1 & SHIYAN 30-04 Miss Distance (Miss Distance) Trend

    TRACERS 1 & SHIYAN 30-04 Miss Distance (Miss Distance) TrendNot Available

    TRACERS 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SHIYAN 30-04Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TRACERS 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    SHIYAN 30-04Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TRACERS 1

    No nearby objects data