Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    7.114405E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:31:43+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 63287
    NORAD ID 63287
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-33680
    Time of Closest Approach 2026-10-28T19:53:04+0000
    Collision Probability (Pc) 7.114405E-6
    Conjunction Distance (km) 1.285 km
    Relative Speed (km/s) 7.587 km/s
    Conjunction Risk Parameters R (Radial): -0.508 | I (In-track): -1.026 | C (Cross-track): 0.582
    Collision Risk Index (CRI) 0.52
    X Position (km) 5952.35 5951.371
    Position Y (km) -2255.486 -2255.585
    Position Z (km) -2560.527 -2561.353
    Velocity X (km/s) 2.27 3.769
    Velocity Y (km/s) -1.951 4.995
    Velocity Z (km/s) 7.012 4.356

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-33680
    Semimajor Axis (a) 6860.587 km 6861.053 km
    Eccentricity (e) 0.000749 0.000654
    Inclination (i) 97.1334° 43.0346°
    RAAN 334.8590° 13.6244°
    Perigee Argument 358.0368° 260.0851°
    Mean Anomaly (M) 2.0841° 99.9263°
    Apogee 487.592 km 487.405 km
    Perigee 477.308 km 478.427 km
    Orbit Epoch 2026-10-27T06:15:18+0000 2026-10-27T06:22:07+0000

    YAOGAN 21 & STARLINK-33680 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-33680 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-33680 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-33680 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33680Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33680Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data