Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.222326E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:52:02+0800
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    1 Object 1

    AOE ID 54091
    NORAD ID 54091
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59388
    NORAD ID 59388
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5221 STARLINK-31643
    Time of Closest Approach 2026-10-21T00:40:44+0000
    Collision Probability (Pc) 1.222326E-6
    Conjunction Distance (km) 2.728 km
    Relative Speed (km/s) 10.142 km/s
    Conjunction Risk Parameters R (Radial): 2.492 | I (In-track): 0.827 | C (Cross-track): 0.74
    Collision Risk Index (CRI) 0.37
    X Position (km) -1803.886 -1803.495
    Position Y (km) -5187.855 -5190.11
    Position Z (km) -4081.854 -4083.338
    Velocity X (km/s) 6.376 4.39
    Velocity Y (km/s) 0.983 -4.725
    Velocity Z (km/s) -4.072 4.072

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5221 STARLINK-31643
    Semimajor Axis (a) 6837.740 km 6840.867 km
    Eccentricity (e) 0.000214 0.000132
    Inclination (i) 53.1615° 53.1616°
    RAAN 44.7832° 289.5280°
    Perigee Argument 81.4079° 80.9201°
    Mean Anomaly (M) 278.7166° 279.1951°
    Apogee 461.067 km 463.634 km
    Perigee 458.139 km 461.826 km
    Orbit Epoch 2026-10-19T08:38:05+0000 2026-10-19T23:52:35+0000

    STARLINK-5221 & STARLINK-31643 Collision Probability (Pc) Trend

    STARLINK-5221 & STARLINK-31643 Collision Probability (Pc) TrendNot Available

    STARLINK-5221 & STARLINK-31643 Miss Distance (Miss Distance) Trend

    STARLINK-5221 & STARLINK-31643 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5221Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31643Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5221Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31643Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5221

    No nearby objects data