Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.502617E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T10:48:00+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 67445
    NORAD ID 67445
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-36542
    Time of Closest Approach 2026-10-21T00:47:04+0000
    Collision Probability (Pc) 1.502617E-6
    Conjunction Distance (km) 2.272 km
    Relative Speed (km/s) 8.374 km/s
    Conjunction Risk Parameters R (Radial): -0.226 | I (In-track): -1.888 | C (Cross-track): -1.242
    Collision Risk Index (CRI) 0.39
    X Position (km) 5262.034 5263.574
    Position Y (km) -2660.622 -2660.33
    Position Z (km) -3512.07 -3510.426
    Velocity X (km/s) 2.94 4.75
    Velocity Y (km/s) -2.721 4.866
    Velocity Z (km/s) 6.483 3.438

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-36542
    Semimajor Axis (a) 6860.835 km 6861.164 km
    Eccentricity (e) 0.000844 0.000049
    Inclination (i) 97.1358° 42.9993°
    RAAN 326.8347° 28.3536°
    Perigee Argument 26.6482° 268.0956°
    Mean Anomaly (M) 333.5190° 91.9840°
    Apogee 488.490 km 483.364 km
    Perigee 476.906 km 482.690 km
    Orbit Epoch 2026-10-18T21:02:39+0000 2026-10-18T07:05:22+0000

    YAOGAN 21 & STARLINK-36542 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-36542 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-36542 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-36542 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36542Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36542Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data