Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.045006E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T06:35:40+0800
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    1 Object 1

    AOE ID 52617
    NORAD ID 52617
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54164
    NORAD ID 54164
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3996 STARLINK-5278
    Time of Closest Approach 2026-10-20T22:45:17+0000
    Collision Probability (Pc) 1.045006E-6
    Conjunction Distance (km) 2.731 km
    Relative Speed (km/s) 7.731 km/s
    Conjunction Risk Parameters R (Radial): -2.438 | I (In-track): 1.061 | C (Cross-track): 0.622
    Collision Risk Index (CRI) 0.35
    X Position (km) -1019.985 -1020.821
    Position Y (km) 4642.653 4640.734
    Position Z (km) 4913.347 4911.594
    Velocity X (km/s) -7.031 -5.838
    Velocity Y (km/s) 1.303 -4.132
    Velocity Z (km/s) -2.683 2.684

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3996 STARLINK-5278
    Semimajor Axis (a) 6843.341 km 6840.794 km
    Eccentricity (e) 0.000138 0.000116
    Inclination (i) 53.1608° 53.1599°
    RAAN 336.9391° 54.4008°
    Perigee Argument 88.8019° 82.5334°
    Mean Anomaly (M) 271.3142° 277.5800°
    Apogee 466.149 km 463.450 km
    Perigee 464.259 km 461.864 km
    Orbit Epoch 2026-10-20T03:28:55+0000 2026-10-20T08:24:30+0000

    STARLINK-3996 & STARLINK-5278 Collision Probability (Pc) Trend

    STARLINK-3996 & STARLINK-5278 Collision Probability (Pc) TrendNot Available

    STARLINK-3996 & STARLINK-5278 Miss Distance (Miss Distance) Trend

    STARLINK-3996 & STARLINK-5278 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3996Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5278Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3996Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5278Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3996

    No nearby objects data