Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.344036E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T22:20:38+0800
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    1 Object 1

    AOE ID 53391
    NORAD ID 53391
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69494
    NORAD ID 69494
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4521 STARLINK-37854
    Time of Closest Approach 2026-10-24T15:47:46+0000
    Collision Probability (Pc) 1.344036E-6
    Conjunction Distance (km) 2.966 km
    Relative Speed (km/s) 14.538 km/s
    Conjunction Risk Parameters R (Radial): -2.959 | I (In-track): 0.065 | C (Cross-track): 0.189
    Collision Risk Index (CRI) 0.38
    X Position (km) 4080.832 4079.168
    Position Y (km) -4262.453 -4260.455
    Position Z (km) 3468.162 3466.736
    Velocity X (km/s) 5.762 -3.464
    Velocity Y (km/s) 1.658 1.995
    Velocity Z (km/s) -4.725 6.505

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4521 STARLINK-37854
    Semimajor Axis (a) 6848.865 km 6843.708 km
    Eccentricity (e) 0.000132 0.000138
    Inclination (i) 53.1590° 97.2851°
    RAAN 163.9667° 317.7397°
    Perigee Argument 77.9497° 95.1252°
    Mean Anomaly (M) 282.1652° 265.0149°
    Apogee 471.634 km 466.516 km
    Perigee 469.822 km 464.626 km
    Orbit Epoch 2026-10-23T18:49:37+0000 2026-10-24T07:49:55+0000

    STARLINK-4521 & STARLINK-37854 Collision Probability (Pc) Trend

    STARLINK-4521 & STARLINK-37854 Collision Probability (Pc) TrendNot Available

    STARLINK-4521 & STARLINK-37854 Miss Distance (Miss Distance) Trend

    STARLINK-4521 & STARLINK-37854 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37854Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4521Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37854Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4521

    No nearby objects data