Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.297191E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T07:23:57+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 59399
    NORAD ID 59399
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 12 STARLINK-31544
    Time of Closest Approach 2026-09-17T01:33:42+0000
    Collision Probability (Pc) 1.297191E-6
    Conjunction Distance (km) 2.893 km
    Relative Speed (km/s) 12.94 km/s
    Conjunction Risk Parameters R (Radial): -2.163 | I (In-track): 1.024 | C (Cross-track): -1.624
    Collision Risk Index (CRI) 0.37
    X Position (km) 2653.552 2654.371
    Position Y (km) -4529.935 -4528.489
    Position Z (km) -4424.799 -4422.432
    Velocity X (km/s) 1.386 5.563
    Velocity Y (km/s) -4.804 4.92
    Velocity Z (km/s) 5.745 -1.7

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 12 STARLINK-31544
    Semimajor Axis (a) 6861.805 km 6861.190 km
    Eccentricity (e) 0.000819 0.000115
    Inclination (i) 97.1070° 43.0045°
    RAAN 292.9583° 64.4444°
    Perigee Argument 260.6606° 265.2044°
    Mean Anomaly (M) 99.3708° 94.8676°
    Apogee 489.285 km 483.845 km
    Perigee 478.051 km 482.261 km
    Orbit Epoch 2026-09-15T15:08:51+0000 2026-09-15T12:22:31+0000

    YAOGAN 12 & STARLINK-31544 Collision Probability (Pc) Trend

    YAOGAN 12 & STARLINK-31544 Collision Probability (Pc) TrendNot Available

    YAOGAN 12 & STARLINK-31544 Miss Distance (Miss Distance) Trend

    YAOGAN 12 & STARLINK-31544 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 12Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31544Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 12Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31544Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 12

    No nearby objects data