Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.458034E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T22:15:39+0800
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    1 Object 1

    AOE ID 52560
    NORAD ID 52560
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53831
    NORAD ID 53831
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3956 STARLINK-4649
    Time of Closest Approach 2026-09-06T11:21:31+0000
    Collision Probability (Pc) 1.458034E-6
    Conjunction Distance (km) 2.609 km
    Relative Speed (km/s) 12.226 km/s
    Conjunction Risk Parameters R (Radial): 2.534 | I (In-track): 0.372 | C (Cross-track): 0.501
    Collision Risk Index (CRI) 0.38
    X Position (km) -6231.474 -6233.526
    Position Y (km) -2817.046 -2818.657
    Position Z (km) -98.733 -98.768
    Velocity X (km/s) 1.959 1.812
    Velocity Y (km/s) -4.137 -4.203
    Velocity Z (km/s) -6.113 6.112

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3956 STARLINK-4649
    Semimajor Axis (a) 6837.817 km 6840.871 km
    Eccentricity (e) 0.000110 0.000123
    Inclination (i) 53.1616° 53.1613°
    RAAN 35.1382° 219.5699°
    Perigee Argument 32.2661° 80.5326°
    Mean Anomaly (M) 327.8409° 279.5815°
    Apogee 460.433 km 463.573 km
    Perigee 458.927 km 461.895 km
    Orbit Epoch 2026-09-04T00:46:21+0000 2026-09-03T08:19:36+0000

    STARLINK-3956 & STARLINK-4649 Collision Probability (Pc) Trend

    STARLINK-3956 & STARLINK-4649 Collision Probability (Pc) TrendNot Available

    STARLINK-3956 & STARLINK-4649 Miss Distance (Miss Distance) Trend

    STARLINK-3956 & STARLINK-4649 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3956Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4649Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3956Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4649Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3956

    No nearby objects data