Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.606244E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T15:18:03+0800
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    1 Object 1

    AOE ID 53654
    NORAD ID 53654
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 65443
    NORAD ID 65443
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4420 STARLINK-34678
    Time of Closest Approach 2026-10-21T14:59:07+0000
    Collision Probability (Pc) 4.606244E-6
    Conjunction Distance (km) 1.258 km
    Relative Speed (km/s) 3.551 km/s
    Conjunction Risk Parameters R (Radial): 0.595 | I (In-track): 1.078 | C (Cross-track): 0.258
    Collision Risk Index (CRI) 0.48
    X Position (km) 342.778 341.726
    Position Y (km) 822.86 823.215
    Position Z (km) 6776.626 6776.036
    Velocity X (km/s) 7.531 6.176
    Velocity Y (km/s) -1.234 -4.483
    Velocity Z (km/s) -0.23 0.233

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4420 STARLINK-34678
    Semimajor Axis (a) 6843.788 km 6843.640 km
    Eccentricity (e) 0.000198 0.000218
    Inclination (i) 97.2830° 97.2791°
    RAAN 169.2235° 141.7281°
    Perigee Argument 92.4746° 88.7415°
    Mean Anomaly (M) 267.6723° 271.4078°
    Apogee 467.005 km 466.998 km
    Perigee 464.297 km 464.008 km
    Orbit Epoch 2026-10-19T21:52:01+0000 2026-10-19T12:29:18+0000

    STARLINK-4420 & STARLINK-34678 Collision Probability (Pc) Trend

    STARLINK-4420 & STARLINK-34678 Collision Probability (Pc) TrendNot Available

    STARLINK-4420 & STARLINK-34678 Miss Distance (Miss Distance) Trend

    STARLINK-4420 & STARLINK-34678 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4420Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34678Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4420Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34678Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4420

    No nearby objects data