Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.062152E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-31T12:57:38+0800
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    1 Object 1

    AOE ID 53993
    NORAD ID 53993
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 61049
    NORAD ID 61049
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5121 SPACEMOBILE-004
    Time of Closest Approach 2026-10-31T21:09:25+0000
    Collision Probability (Pc) 3.062152E-6
    Conjunction Distance (km) 1.859 km
    Relative Speed (km/s) 12.147 km/s
    Conjunction Risk Parameters R (Radial): -1.8 | I (In-track): -0.278 | C (Cross-track): 0.37
    Collision Risk Index (CRI) 0.45
    X Position (km) 4945.836 4946.807
    Position Y (km) 4762.544 4764.122
    Position Z (km) 537.163 537.303
    Velocity X (km/s) -2.826 -3.532
    Velocity Y (km/s) 3.631 2.975
    Velocity Z (km/s) -6.063 6.045

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5121 SPACEMOBILE-004
    Semimajor Axis (a) 6887.055 km 6883.305 km
    Eccentricity (e) 0.000188 0.000779
    Inclination (i) 53.1588° 52.9710°
    RAAN 232.0687° 47.4910°
    Perigee Argument 81.0299° 175.4854°
    Mean Anomaly (M) 118.1428° 184.6212°
    Apogee 510.215 km 510.531 km
    Perigee 507.621 km 499.805 km
    Orbit Epoch 2026-10-30T20:00:03+0000 2026-10-30T08:50:34+0000

    STARLINK-5121 & SPACEMOBILE-004 Collision Probability (Pc) Trend

    STARLINK-5121 & SPACEMOBILE-004 Collision Probability (Pc) TrendNot Available

    STARLINK-5121 & SPACEMOBILE-004 Miss Distance (Miss Distance) Trend

    STARLINK-5121 & SPACEMOBILE-004 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SPACEMOBILE-004Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5121Collision Probability Trend

    Object 1 Probability TrendNot Available

    SPACEMOBILE-004Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5121

    No nearby objects data