Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.813978E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T08:20:33+0800
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    1 Object 1

    AOE ID 53498
    NORAD ID 53498
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 62920
    NORAD ID 62920
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4439 STARLINK-32921
    Time of Closest Approach 2026-09-13T03:41:21+0000
    Collision Probability (Pc) 1.813978E-6
    Conjunction Distance (km) 2.388 km
    Relative Speed (km/s) 13.54 km/s
    Conjunction Risk Parameters R (Radial): 2.348 | I (In-track): -0.189 | C (Cross-track): 0.394
    Collision Risk Index (CRI) 0.4
    X Position (km) 5280.287 5282.079
    Position Y (km) 1827.004 1827.243
    Position Z (km) -3963.676 -3965.236
    Velocity X (km/s) 4.502 -4.079
    Velocity Y (km/s) 0.304 5.826
    Velocity Z (km/s) 6.145 -2.753

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4439 STARLINK-32921
    Semimajor Axis (a) 6843.668 km 6852.471 km
    Eccentricity (e) 0.000125 0.000323
    Inclination (i) 97.2862° 43.0002°
    RAAN 12.0833° 161.2289°
    Perigee Argument 100.0242° 206.3693°
    Mean Anomaly (M) 260.1142° 153.6995°
    Apogee 466.389 km 476.549 km
    Perigee 464.673 km 472.119 km
    Orbit Epoch 2026-09-11T07:59:36+0000 2026-09-11T02:06:08+0000

    STARLINK-4439 & STARLINK-32921 Collision Probability (Pc) Trend

    STARLINK-4439 & STARLINK-32921 Collision Probability (Pc) TrendNot Available

    STARLINK-4439 & STARLINK-32921 Miss Distance (Miss Distance) Trend

    STARLINK-4439 & STARLINK-32921 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4439Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-32921Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4439Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-32921Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4439

    No nearby objects data