Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.58212E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T23:57:31+0800
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    1 Object 1

    AOE ID 52999
    NORAD ID 52999
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54167
    NORAD ID 54167
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4217 STARLINK-5243
    Time of Closest Approach 2026-10-21T22:46:10+0000
    Collision Probability (Pc) 8.58212E-7
    Conjunction Distance (km) 2.991 km
    Relative Speed (km/s) 6.658 km/s
    Conjunction Risk Parameters R (Radial): 2.988 | I (In-track): -0.101 | C (Cross-track): -0.048
    Collision Risk Index (CRI) 0.34
    X Position (km) -4430.142 -4428.179
    Position Y (km) -1053.607 -1053.255
    Position Z (km) 5095.266 5093.039
    Velocity X (km/s) 4.008 -0.827
    Velocity Y (km/s) -6.115 -7.266
    Velocity Z (km/s) 2.214 -2.216

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4217 STARLINK-5243
    Semimajor Axis (a) 6840.877 km 6837.858 km
    Eccentricity (e) 0.000135 0.000120
    Inclination (i) 53.1581° 53.1606°
    RAAN 145.5461° 79.9432°
    Perigee Argument 91.4286° 84.4949°
    Mean Anomaly (M) 268.6871° 275.6191°
    Apogee 463.662 km 460.539 km
    Perigee 461.818 km 458.903 km
    Orbit Epoch 2026-10-19T23:34:25+0000 2026-10-19T21:51:31+0000

    STARLINK-4217 & STARLINK-5243 Collision Probability (Pc) Trend

    STARLINK-4217 & STARLINK-5243 Collision Probability (Pc) TrendNot Available

    STARLINK-4217 & STARLINK-5243 Miss Distance (Miss Distance) Trend

    STARLINK-4217 & STARLINK-5243 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4217Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5243Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4217Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5243Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4217

    No nearby objects data