Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.930557E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T05:35:35+0800
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    1 Object 1

    AOE ID 59539
    NORAD ID 59539
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name IRIS-F2
    AOE ID 62684
    NORAD ID 62684
    Object Type PAYLOAD
    Country
    TW TW

    Conjunction Constraints

    Parameter STARLINK-31539 IRIS-F2
    Time of Closest Approach 2026-10-20T05:41:39+0000
    Collision Probability (Pc) 2.930557E-6
    Conjunction Distance (km) 1.948 km
    Relative Speed (km/s) 13.806 km/s
    Conjunction Risk Parameters R (Radial): -0.548 | I (In-track): 0.801 | C (Cross-track): -1.688
    Collision Risk Index (CRI) 0.44
    X Position (km) -5613.015 -5612.643
    Position Y (km) -1654.277 -1655.79
    Position Z (km) 3573.915 3572.746
    Velocity X (km/s) 3.817 -4.099
    Velocity Y (km/s) -5.69 -0.013
    Velocity Z (km/s) 3.352 -6.43

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31539 IRIS-F2
    Semimajor Axis (a) 6861.194 km 6856.937 km
    Eccentricity (e) 0.000127 0.000329
    Inclination (i) 43.0010° 97.3802°
    RAAN 162.5430° 10.8325°
    Perigee Argument 270.2881° 268.1489°
    Mean Anomaly (M) 89.7826° 91.9374°
    Apogee 483.927 km 481.058 km
    Perigee 482.187 km 476.542 km
    Orbit Epoch 2026-10-18T23:39:39+0000 2026-10-19T03:55:02+0000

    STARLINK-31539 & IRIS-F2 Collision Probability (Pc) Trend

    STARLINK-31539 & IRIS-F2 Collision Probability (Pc) TrendNot Available

    STARLINK-31539 & IRIS-F2 Miss Distance (Miss Distance) Trend

    STARLINK-31539 & IRIS-F2 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31539Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIS-F2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31539Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIS-F2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31539

    No nearby objects data