Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.240061E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T03:02:28+0800
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    1 Object 1

    AOE ID 53857
    NORAD ID 53857
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63949
    NORAD ID 63949
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4809 STARLINK-33993
    Time of Closest Approach 2026-10-19T04:55:42+0000
    Collision Probability (Pc) 1.240061E-6
    Conjunction Distance (km) 2.512 km
    Relative Speed (km/s) 8.307 km/s
    Conjunction Risk Parameters R (Radial): 1.926 | I (In-track): -1.346 | C (Cross-track): 0.885
    Collision Risk Index (CRI) 0.37
    X Position (km) 240.598 239.215
    Position Y (km) -4170.998 -4172.755
    Position Z (km) -5434.003 -5435.145
    Velocity X (km/s) 7.548 3.983
    Velocity Y (km/s) -0.637 5.236
    Velocity Z (km/s) 0.824 -3.844

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4809 STARLINK-33993
    Semimajor Axis (a) 6848.892 km 6852.659 km
    Eccentricity (e) 0.000110 0.000446
    Inclination (i) 53.1586° 69.9997°
    RAAN 355.2964° 67.2008°
    Perigee Argument 90.7093° 274.2424°
    Mean Anomaly (M) 269.4034° 85.8242°
    Apogee 471.507 km 477.579 km
    Perigee 470.003 km 471.465 km
    Orbit Epoch 2026-10-18T04:13:49+0000 2026-10-18T09:04:14+0000

    STARLINK-4809 & STARLINK-33993 Collision Probability (Pc) Trend

    STARLINK-4809 & STARLINK-33993 Collision Probability (Pc) TrendNot Available

    STARLINK-4809 & STARLINK-33993 Miss Distance (Miss Distance) Trend

    STARLINK-4809 & STARLINK-33993 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4809Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33993Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4809Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33993Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4809

    No nearby objects data