Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.775481E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T04:24:05+0800
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    1 Object 1

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

    2 Object 2

    AOE ID 63778
    NORAD ID 63778
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-33938
    Time of Closest Approach 2026-10-30T06:36:30+0000
    Collision Probability (Pc) 1.775481E-6
    Conjunction Distance (km) 2.457 km
    Relative Speed (km/s) 14.301 km/s
    Conjunction Risk Parameters R (Radial): 1.976 | I (In-track): -0.519 | C (Cross-track): 1.366
    Collision Risk Index (CRI) 0.4
    X Position (km) 6181.866 6183.245
    Position Y (km) -2697.521 -2699.529
    Position Z (km) 1238.847 1238.527
    Velocity X (km/s) -1.644 3.118
    Velocity Y (km/s) -0.333 4.825
    Velocity Z (km/s) 7.442 -5.017

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-33938
    Semimajor Axis (a) 6860.544 km 6861.217 km
    Eccentricity (e) 0.000724 0.000124
    Inclination (i) 97.1332° 42.9989°
    RAAN 336.4881° 176.8657°
    Perigee Argument 351.8248° 262.6840°
    Mean Anomaly (M) 8.2873° 44.8476°
    Apogee 487.378 km 483.934 km
    Perigee 477.436 km 482.226 km
    Orbit Epoch 2026-10-28T23:07:29+0000 2026-10-28T16:00:02+0000

    YAOGAN 21 & STARLINK-33938 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-33938 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-33938 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-33938 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33938Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33938Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data