Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.033569E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-01T07:52:57+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 59551
    NORAD ID 59551
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 12 STARLINK-31699
    Time of Closest Approach 2026-09-01T12:57:43+0000
    Collision Probability (Pc) 5.033569E-6
    Conjunction Distance (km) 1.621 km
    Relative Speed (km/s) 13.976 km/s
    Conjunction Risk Parameters R (Radial): 1.048 | I (In-track): -0.486 | C (Cross-track): 1.137
    Collision Risk Index (CRI) 0.49
    X Position (km) 1392.868 1391.984
    Position Y (km) -5964.054 -5964.924
    Position Z (km) -3095.563 -3096.606
    Velocity X (km/s) -0.255 5.634
    Velocity Y (km/s) -3.554 3.337
    Velocity Z (km/s) 6.739 -3.899

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 12 STARLINK-31699
    Semimajor Axis (a) 6862.126 km 6861.181 km
    Eccentricity (e) 0.000831 0.000096
    Inclination (i) 97.1088° 43.0034°
    RAAN 278.6595° 77.5306°
    Perigee Argument 321.9288° 281.7904°
    Mean Anomaly (M) 38.1364° 78.2840°
    Apogee 489.690 km 483.701 km
    Perigee 478.288 km 482.387 km
    Orbit Epoch 2026-08-31T15:03:57+0000 2026-08-31T06:10:53+0000

    YAOGAN 12 & STARLINK-31699 Collision Probability (Pc) Trend

    YAOGAN 12 & STARLINK-31699 Collision Probability (Pc) TrendNot Available

    YAOGAN 12 & STARLINK-31699 Miss Distance (Miss Distance) Trend

    YAOGAN 12 & STARLINK-31699 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 12Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31699Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 12Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31699Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 12

    No nearby objects data