Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.298426E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T00:24:25+0800
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    1 Object 1

    AOE ID 58217
    NORAD ID 58217
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59939
    NORAD ID 59939
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-30818 STARLINK-31955
    Time of Closest Approach 2026-09-13T08:38:14+0000
    Collision Probability (Pc) 3.298426E-6
    Conjunction Distance (km) 1.721 km
    Relative Speed (km/s) 9.712 km/s
    Conjunction Risk Parameters R (Radial): -1.71 | I (In-track): 0.138 | C (Cross-track): -0.124
    Collision Risk Index (CRI) 0.45
    X Position (km) -6336.64 -6335.016
    Position Y (km) -1488.205 -1488.015
    Position Z (km) -2173.666 -2173.132
    Velocity X (km/s) -0.151 2.84
    Velocity Y (km/s) -6.072 -5.37
    Velocity Z (km/s) 4.607 -4.607

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30818 STARLINK-31955
    Semimajor Axis (a) 6861.200 km 6859.033 km
    Eccentricity (e) 0.000140 0.000262
    Inclination (i) 43.0016° 43.0035°
    RAAN 226.0084° 14.6156°
    Perigee Argument 268.6483° 292.5767°
    Mean Anomaly (M) 91.4208° 67.4808°
    Apogee 484.024 km 482.695 km
    Perigee 482.102 km 479.097 km
    Orbit Epoch 2026-09-11T06:32:29+0000 2026-09-09T09:37:46+0000

    STARLINK-30818 & STARLINK-31955 Collision Probability (Pc) Trend

    STARLINK-30818 & STARLINK-31955 Collision Probability (Pc) TrendNot Available

    STARLINK-30818 & STARLINK-31955 Miss Distance (Miss Distance) Trend

    STARLINK-30818 & STARLINK-31955 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30818Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31955Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30818Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31955Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30818

    No nearby objects data