Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.284164E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T03:57:14+0800
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    1 Object 1

    AOE ID 53985
    NORAD ID 53985
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 57263
    NORAD ID 57263
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5147 STARLINK-5509
    Time of Closest Approach 2026-10-19T02:42:44+0000
    Collision Probability (Pc) 1.284164E-6
    Conjunction Distance (km) 2.373 km
    Relative Speed (km/s) 7.414 km/s
    Conjunction Risk Parameters R (Radial): -1.314 | I (In-track): -1.729 | C (Cross-track): -0.955
    Collision Risk Index (CRI) 0.37
    X Position (km) 4460.664 4462.39
    Position Y (km) -2867.305 -2866.1
    Position Z (km) 4343.315 4344.412
    Velocity X (km/s) 0.624 5.223
    Velocity Y (km/s) 6.628 5.217
    Velocity Z (km/s) 3.724 -1.918

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5147 STARLINK-5509
    Semimajor Axis (a) 6860.246 km 6861.203 km
    Eccentricity (e) 0.000080 0.000118
    Inclination (i) 53.1589° 43.0018°
    RAAN 292.2197° 214.0961°
    Perigee Argument 112.6073° 277.8095°
    Mean Anomaly (M) 166.1544° 82.2622°
    Apogee 482.657 km 483.877 km
    Perigee 481.561 km 482.255 km
    Orbit Epoch 2026-10-18T12:00:03+0000 2026-10-18T04:15:22+0000

    STARLINK-5147 & STARLINK-5509 Collision Probability (Pc) Trend

    STARLINK-5147 & STARLINK-5509 Collision Probability (Pc) TrendNot Available

    STARLINK-5147 & STARLINK-5509 Miss Distance (Miss Distance) Trend

    STARLINK-5147 & STARLINK-5509 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5147Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5509Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5147Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5509Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5147

    No nearby objects data