Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.569538E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:05:21+0800
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    1 Object 1

    AOE ID 53220
    NORAD ID 53220
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53404
    NORAD ID 53404
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4363 STARLINK-4509
    Time of Closest Approach 2026-09-04T17:47:21+0000
    Collision Probability (Pc) 2.569538E-6
    Conjunction Distance (km) 1.907 km
    Relative Speed (km/s) 10.258 km/s
    Conjunction Risk Parameters R (Radial): 1.453 | I (In-track): -0.917 | C (Cross-track): 0.825
    Collision Risk Index (CRI) 0.43
    X Position (km) -2868.958 -2869.37
    Position Y (km) 3198.121 3197.634
    Position Z (km) 5325.689 5323.893
    Velocity X (km/s) -2.741 -6.604
    Velocity Y (km/s) 5.365 -3.558
    Velocity Z (km/s) -4.686 -1.419

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4363 STARLINK-4509
    Semimajor Axis (a) 6851.190 km 6848.815 km
    Eccentricity (e) 0.000155 0.000121
    Inclination (i) 97.2861° 53.1624°
    RAAN 301.9585° 25.1235°
    Perigee Argument 68.6925° 73.8860°
    Mean Anomaly (M) 196.5730° 286.2275°
    Apogee 474.116 km 471.507 km
    Perigee 471.990 km 469.849 km
    Orbit Epoch 2026-09-03T22:00:02+0000 2026-09-03T16:17:03+0000

    STARLINK-4363 & STARLINK-4509 Collision Probability (Pc) Trend

    STARLINK-4363 & STARLINK-4509 Collision Probability (Pc) TrendNot Available

    STARLINK-4363 & STARLINK-4509 Miss Distance (Miss Distance) Trend

    STARLINK-4363 & STARLINK-4509 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4363Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4509Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4363Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4509Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4363

    No nearby objects data