Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.748655E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T21:05:44+0800
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    1 Object 1

    AOE ID 54859
    NORAD ID 54859
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 62727
    NORAD ID 62727
    Object Type UNKNOWN
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-5409 OBJECT C
    Time of Closest Approach 2026-09-12T20:31:39+0000
    Collision Probability (Pc) 1.748655E-6
    Conjunction Distance (km) 2.479 km
    Relative Speed (km/s) 14.331 km/s
    Conjunction Risk Parameters R (Radial): 2.045 | I (In-track): -0.487 | C (Cross-track): 1.314
    Collision Risk Index (CRI) 0.4
    X Position (km) -6013.518 -6014.658
    Position Y (km) 3202.171 3204.192
    Position Z (km) 805.782 806.655
    Velocity X (km/s) -2.099 -0.324
    Velocity Y (km/s) -5.243 1.295
    Velocity Z (km/s) 5.125 -7.504

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5409 OBJECT C
    Semimajor Axis (a) 6861.201 km 6856.690 km
    Eccentricity (e) 0.000107 0.000602
    Inclination (i) 43.0011° 97.4200°
    RAAN 149.1168° 330.5171°
    Perigee Argument 243.3469° 326.7601°
    Mean Anomaly (M) 116.7273° 33.3260°
    Apogee 483.799 km 482.684 km
    Perigee 482.329 km 474.422 km
    Orbit Epoch 2026-09-12T01:39:12+0000 2026-09-12T07:12:30+0000

    STARLINK-5409 & OBJECT C Collision Probability (Pc) Trend

    STARLINK-5409 & OBJECT C Collision Probability (Pc) TrendNot Available

    STARLINK-5409 & OBJECT C Miss Distance (Miss Distance) Trend

    STARLINK-5409 & OBJECT C Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5409Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT CMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5409Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT CCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5409

    No nearby objects data