Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.872855E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T08:33:16+0800
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    1 Object 1

    AOE ID 53831
    NORAD ID 53831
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59389
    NORAD ID 59389
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4649 STARLINK-31647
    Time of Closest Approach 2026-10-13T07:40:45+0000
    Collision Probability (Pc) 4.872855E-6
    Conjunction Distance (km) 1.422 km
    Relative Speed (km/s) 7.129 km/s
    Conjunction Risk Parameters R (Radial): -0.133 | I (In-track): 1.251 | C (Cross-track): 0.661
    Collision Risk Index (CRI) 0.49
    X Position (km) -244.849 -243.431
    Position Y (km) -4638.571 -4638.554
    Position Z (km) -5029.62 -5029.522
    Velocity X (km/s) 6.869 6.594
    Velocity Y (km/s) 2.259 -2.967
    Velocity Z (km/s) -2.42 2.419

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4649 STARLINK-31647
    Semimajor Axis (a) 6840.944 km 6840.817 km
    Eccentricity (e) 0.000120 0.000149
    Inclination (i) 53.1622° 53.1609°
    RAAN 37.4907° 332.7819°
    Perigee Argument 79.0522° 88.8341°
    Mean Anomaly (M) 281.0616° 271.2832°
    Apogee 463.627 km 463.698 km
    Perigee 461.987 km 461.662 km
    Orbit Epoch 2026-10-12T07:09:34+0000 2026-10-10T20:34:01+0000

    STARLINK-4649 & STARLINK-31647 Collision Probability (Pc) Trend

    STARLINK-4649 & STARLINK-31647 Collision Probability (Pc) TrendNot Available

    STARLINK-4649 & STARLINK-31647 Miss Distance (Miss Distance) Trend

    STARLINK-4649 & STARLINK-31647 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4649Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31647Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4649Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31647Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4649

    No nearby objects data