Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.970452E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-31T12:21:27+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 40143
    NORAD ID 40143
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 57142
    NORAD ID 57142
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-5361
    Time of Closest Approach 2026-11-01T19:47:03+0000
    Collision Probability (Pc) 9.970452E-7
    Conjunction Distance (km) 2.776 km
    Relative Speed (km/s) 7.4 km/s
    Conjunction Risk Parameters R (Radial): 1.083 | I (In-track): 2.238 | C (Cross-track): 1.236
    Collision Risk Index (CRI) 0.35
    X Position (km) 6202.999 6201.013
    Position Y (km) -1943.172 -1943.536
    Position Z (km) -2195.08 -2196.984
    Velocity X (km/s) 2.004 3.24
    Velocity Y (km/s) -1.674 5.154
    Velocity Z (km/s) 7.163 4.594

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-5361
    Semimajor Axis (a) 6860.508 km 6861.152 km
    Eccentricity (e) 0.000699 0.000487
    Inclination (i) 97.1328° 42.9973°
    RAAN 338.3055° 18.2521°
    Perigee Argument 345.2246° 298.8964°
    Mean Anomaly (M) 14.8789° 61.1399°
    Apogee 487.166 km 486.356 km
    Perigee 477.576 km 479.674 km
    Orbit Epoch 2026-10-30T20:42:35+0000 2026-10-30T06:42:20+0000

    YAOGAN 21 & STARLINK-5361 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-5361 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-5361 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-5361 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5361Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5361Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data