Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.185942E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:43:58+0800
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    1 Object 1

    AOE ID 51998
    NORAD ID 51998
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53025
    NORAD ID 53025
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3618 STARLINK-4218
    Time of Closest Approach 2026-09-04T20:56:22+0000
    Collision Probability (Pc) 9.185942E-7
    Conjunction Distance (km) 2.919 km
    Relative Speed (km/s) 7.162 km/s
    Conjunction Risk Parameters R (Radial): 2.522 | I (In-track): 1.296 | C (Cross-track): -0.693
    Collision Risk Index (CRI) 0.34
    X Position (km) -3055.382 -3055.398
    Position Y (km) -3506.037 -3508.292
    Position Z (km) -5024.188 -5026.041
    Velocity X (km/s) 3.35 6.801
    Velocity Y (km/s) -6.403 -2.44
    Velocity Z (km/s) 2.433 -2.433

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3618 STARLINK-4218
    Semimajor Axis (a) 6840.894 km 6843.375 km
    Eccentricity (e) 0.000112 0.000114
    Inclination (i) 53.1593° 53.1628°
    RAAN 293.6258° 9.0721°
    Perigee Argument 71.7178° 81.8597°
    Mean Anomaly (M) 288.3946° 278.2534°
    Apogee 463.527 km 466.017 km
    Perigee 461.987 km 464.459 km
    Orbit Epoch 2026-09-02T14:30:52+0000 2026-09-01T19:55:12+0000

    STARLINK-3618 & STARLINK-4218 Collision Probability (Pc) Trend

    STARLINK-3618 & STARLINK-4218 Collision Probability (Pc) TrendNot Available

    STARLINK-3618 & STARLINK-4218 Miss Distance (Miss Distance) Trend

    STARLINK-3618 & STARLINK-4218 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3618Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4218Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3618Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4218Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3618

    No nearby objects data