Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.438266E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T20:45:53+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53539
    NORAD ID 53539
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 60019
    NORAD ID 60019
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4123 STARLINK-31986
    Time of Closest Approach 2026-10-21T22:32:36+0000
    Collision Probability (Pc) 5.438266E-6
    Conjunction Distance (km) 1.086 km
    Relative Speed (km/s) 2.085 km/s
    Conjunction Risk Parameters R (Radial): 0.139 | I (In-track): -1.066 | C (Cross-track): -0.148
    Collision Risk Index (CRI) 0.5
    X Position (km) 3828.296 3828.787
    Position Y (km) 1591.439 1590.477
    Position Z (km) -5448.561 -5448.672
    Velocity X (km/s) -3.664 -2.132
    Velocity Y (km/s) 6.656 7.292
    Velocity Z (km/s) -0.631 0.631

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4123 STARLINK-31986
    Semimajor Axis (a) 6840.877 km 6840.941 km
    Eccentricity (e) 0.000135 0.000130
    Inclination (i) 53.1587° 53.1585°
    RAAN 136.6358° 116.9758°
    Perigee Argument 91.5170° 90.5715°
    Mean Anomaly (M) 268.5988° 269.5437°
    Apogee 463.666 km 463.694 km
    Perigee 461.814 km 461.914 km
    Orbit Epoch 2026-10-18T21:29:15+0000 2026-10-18T21:26:03+0000

    STARLINK-4123 & STARLINK-31986 Collision Probability (Pc) Trend

    STARLINK-4123 & STARLINK-31986 Collision Probability (Pc) TrendNot Available

    STARLINK-4123 & STARLINK-31986 Miss Distance (Miss Distance) Trend

    STARLINK-4123 & STARLINK-31986 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4123Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31986Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4123Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31986Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4123

    No nearby objects data