Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.005498E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T09:15:39+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53294
    NORAD ID 53294
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53709
    NORAD ID 53709
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4146 STARLINK-4685
    Time of Closest Approach 2026-10-25T02:38:54+0000
    Collision Probability (Pc) 1.005498E-6
    Conjunction Distance (km) 2.797 km
    Relative Speed (km/s) 7.646 km/s
    Conjunction Risk Parameters R (Radial): 2.758 | I (In-track): -0.401 | C (Cross-track): 0.235
    Collision Risk Index (CRI) 0.35
    X Position (km) -4238.927 -4240.427
    Position Y (km) 2130.045 2131.32
    Position Z (km) -4932.281 -4934.267
    Velocity X (km/s) -5.424 -0.503
    Velocity Y (km/s) -4.659 -7.132
    Velocity Z (km/s) 2.652 -2.651

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4146 STARLINK-4685
    Semimajor Axis (a) 6837.902 km 6840.911 km
    Eccentricity (e) 0.000149 0.000121
    Inclination (i) 53.1571° 53.1537°
    RAAN 209.0585° 287.1673°
    Perigee Argument 88.5153° 94.4415°
    Mean Anomaly (M) 271.6021° 265.6725°
    Apogee 460.786 km 463.600 km
    Perigee 458.744 km 461.948 km
    Orbit Epoch 2026-10-24T03:29:39+0000 2026-10-24T00:34:34+0000

    STARLINK-4146 & STARLINK-4685 Collision Probability (Pc) Trend

    STARLINK-4146 & STARLINK-4685 Collision Probability (Pc) TrendNot Available

    STARLINK-4146 & STARLINK-4685 Miss Distance (Miss Distance) Trend

    STARLINK-4146 & STARLINK-4685 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4146Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4685Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4146Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4685Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4146

    No nearby objects data