Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.452742E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T14:15:14+0800
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    1 Object 1

    AOE ID 37875
    NORAD ID 37875
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 59564
    NORAD ID 59564
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 12 STARLINK-31747
    Time of Closest Approach 2026-09-05T23:51:09+0000
    Collision Probability (Pc) 2.452742E-5
    Conjunction Distance (km) 1.012 km
    Relative Speed (km/s) 13.548 km/s
    Conjunction Risk Parameters R (Radial): 0.258 | I (In-track): -0.448 | C (Cross-track): 0.87
    Collision Risk Index (CRI) 0.63
    X Position (km) 1810.667 1809.879
    Position Y (km) -5325.303 -5325.446
    Position Z (km) -3932.745 -3933.363
    Velocity X (km/s) 0.3 5.805
    Velocity Y (km/s) -4.456 4.052
    Velocity Z (km/s) 6.174 -2.816

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 12 STARLINK-31747
    Semimajor Axis (a) 6862.112 km 6861.144 km
    Eccentricity (e) 0.000824 0.000140
    Inclination (i) 97.1087° 43.0022°
    RAAN 281.7185° 74.0583°
    Perigee Argument 309.7597° 268.8042°
    Mean Anomaly (M) 50.2917° 91.2650°
    Apogee 489.627 km 483.965 km
    Perigee 478.323 km 482.049 km
    Orbit Epoch 2026-09-03T20:06:57+0000 2026-09-03T12:45:25+0000

    YAOGAN 12 & STARLINK-31747 Collision Probability (Pc) Trend

    YAOGAN 12 & STARLINK-31747 Collision Probability (Pc) TrendNot Available

    YAOGAN 12 & STARLINK-31747 Miss Distance (Miss Distance) Trend

    YAOGAN 12 & STARLINK-31747 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 12Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31747Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 12Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31747Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 12

    No nearby objects data