Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.406029E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T01:52:26+0800
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    1 Object 1

    AOE ID 59741
    NORAD ID 59741
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 62681
    NORAD ID 62681
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31818 FLOCK 4G 17
    Time of Closest Approach 2026-09-13T18:28:47+0000
    Collision Probability (Pc) 1.406029E-6
    Conjunction Distance (km) 2.78 km
    Relative Speed (km/s) 13.553 km/s
    Conjunction Risk Parameters R (Radial): -2.711 | I (In-track): 0.285 | C (Cross-track): -0.542
    Collision Risk Index (CRI) 0.38
    X Position (km) -4977.144 -4975.225
    Position Y (km) 2593.46 2591.899
    Position Z (km) -3950.312 -3949.045
    Velocity X (km/s) -4.888 4.391
    Velocity Y (km/s) -5.138 -0.937
    Velocity Z (km/s) 2.787 -6.153

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31818 FLOCK 4G 17
    Semimajor Axis (a) 6861.174 km 6850.690 km
    Eccentricity (e) 0.000150 0.000517
    Inclination (i) 43.0026° 97.3881°
    RAAN 215.5045° 334.6898°
    Perigee Argument 277.3676° 45.5209°
    Mean Anomaly (M) 82.7006° 314.6454°
    Apogee 484.063 km 476.099 km
    Perigee 482.011 km 469.007 km
    Orbit Epoch 2026-09-11T07:05:57+0000 2026-09-10T17:23:29+0000

    STARLINK-31818 & FLOCK 4G 17 Collision Probability (Pc) Trend

    STARLINK-31818 & FLOCK 4G 17 Collision Probability (Pc) TrendNot Available

    STARLINK-31818 & FLOCK 4G 17 Miss Distance (Miss Distance) Trend

    STARLINK-31818 & FLOCK 4G 17 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31818Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4G 17Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31818Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4G 17Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31818

    No nearby objects data