Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.623068E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:31:22+0800
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    1 Object 1

    AOE ID 53004
    NORAD ID 53004
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55942
    NORAD ID 55942
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4253 STARLINK-5917
    Time of Closest Approach 2026-10-20T06:47:23+0000
    Collision Probability (Pc) 4.623068E-6
    Conjunction Distance (km) 1.5 km
    Relative Speed (km/s) 8.523 km/s
    Conjunction Risk Parameters R (Radial): -0.901 | I (In-track): 0.997 | C (Cross-track): 0.664
    Collision Risk Index (CRI) 0.48
    X Position (km) 2801.588 2800.624
    Position Y (km) 3132.864 3133.454
    Position Z (km) -5415.223 -5414.238
    Velocity X (km/s) -6.386 0.159
    Velocity Y (km/s) 4.042 6.558
    Velocity Z (km/s) -0.966 3.878

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4253 STARLINK-5917
    Semimajor Axis (a) 6848.863 km 6857.256 km
    Eccentricity (e) 0.000177 0.000369
    Inclination (i) 53.1570° 70.0008°
    RAAN 158.8489° 78.9269°
    Perigee Argument 95.5947° 273.6762°
    Mean Anomaly (M) 264.5256° 101.1657°
    Apogee 471.936 km 481.650 km
    Perigee 469.516 km 476.588 km
    Orbit Epoch 2026-10-19T01:28:04+0000 2026-10-19T06:00:01+0000

    STARLINK-4253 & STARLINK-5917 Collision Probability (Pc) Trend

    STARLINK-4253 & STARLINK-5917 Collision Probability (Pc) TrendNot Available

    STARLINK-4253 & STARLINK-5917 Miss Distance (Miss Distance) Trend

    STARLINK-4253 & STARLINK-5917 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4253Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5917Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4253Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5917Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4253

    No nearby objects data