Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.382444E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:18:05+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53178
    NORAD ID 53178
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58981
    NORAD ID 58981
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4280 STARLINK-31339
    Time of Closest Approach 2026-10-20T15:53:44+0000
    Collision Probability (Pc) 1.382444E-6
    Conjunction Distance (km) 2.447 km
    Relative Speed (km/s) 9.26 km/s
    Conjunction Risk Parameters R (Radial): -2.417 | I (In-track): 0.3 | C (Cross-track): 0.23
    Collision Risk Index (CRI) 0.38
    X Position (km) 5108.404 5106.547
    Position Y (km) 690.725 690.855
    Position Z (km) 4491.494 4489.907
    Velocity X (km/s) 2.204 -3.834
    Velocity Y (km/s) 6.428 5.613
    Velocity Z (km/s) -3.486 3.487

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4280 STARLINK-31339
    Semimajor Axis (a) 6843.349 km 6840.858 km
    Eccentricity (e) 0.000131 0.000136
    Inclination (i) 53.1591° 53.1601°
    RAAN 234.9847° 330.9253°
    Perigee Argument 96.1064° 89.8550°
    Mean Anomaly (M) 264.0088° 270.2608°
    Apogee 466.110 km 463.652 km
    Perigee 464.314 km 461.790 km
    Orbit Epoch 2026-10-19T06:30:28+0000 2026-10-19T19:20:02+0000

    STARLINK-4280 & STARLINK-31339 Collision Probability (Pc) Trend

    STARLINK-4280 & STARLINK-31339 Collision Probability (Pc) TrendNot Available

    STARLINK-4280 & STARLINK-31339 Miss Distance (Miss Distance) Trend

    STARLINK-4280 & STARLINK-31339 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4280Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31339Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4280Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31339Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4280

    No nearby objects data