Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.366527E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T22:09:18+0800
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    1 Object 1

    AOE ID 51785
    NORAD ID 51785
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53065
    NORAD ID 53065
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3646 STARLINK-4312
    Time of Closest Approach 2026-09-06T12:20:57+0000
    Collision Probability (Pc) 1.366527E-6
    Conjunction Distance (km) 2.943 km
    Relative Speed (km/s) 14.713 km/s
    Conjunction Risk Parameters R (Radial): 2.367 | I (In-track): 0.474 | C (Cross-track): -1.682
    Collision Risk Index (CRI) 0.38
    X Position (km) -2626.151 -2625.652
    Position Y (km) -6052.016 -6054.916
    Position Z (km) 1832.838 1832.82
    Velocity X (km/s) 4.996 -1.731
    Velocity Y (km/s) -0.415 -1.468
    Velocity Z (km/s) 5.756 -7.286

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3646 STARLINK-4312
    Semimajor Axis (a) 6848.889 km 6858.353 km
    Eccentricity (e) 0.000109 0.000169
    Inclination (i) 53.1591° 97.2861°
    RAAN 246.0839° 62.3810°
    Perigee Argument 66.5314° 89.7355°
    Mean Anomaly (M) 293.5801° 307.3444°
    Apogee 471.499 km 481.374 km
    Perigee 470.005 km 479.058 km
    Orbit Epoch 2026-09-04T00:45:21+0000 2026-09-04T08:00:02+0000

    STARLINK-3646 & STARLINK-4312 Collision Probability (Pc) Trend

    STARLINK-3646 & STARLINK-4312 Collision Probability (Pc) TrendNot Available

    STARLINK-3646 & STARLINK-4312 Miss Distance (Miss Distance) Trend

    STARLINK-3646 & STARLINK-4312 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3646Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4312Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3646Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4312Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3646

    No nearby objects data