Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.940239E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T09:30:26+0800
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    1 Object 1

    AOE ID 55316
    NORAD ID 55316
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59658
    NORAD ID 59658
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5257 STARLINK-31858
    Time of Closest Approach 2026-10-13T20:23:28+0000
    Collision Probability (Pc) 1.940239E-6
    Conjunction Distance (km) 2.027 km
    Relative Speed (km/s) 8.394 km/s
    Conjunction Risk Parameters R (Radial): 1.918 | I (In-track): 0.549 | C (Cross-track): -0.359
    Collision Risk Index (CRI) 0.41
    X Position (km) -4473.734 -4475.44
    Position Y (km) 2312.861 2313.096
    Position Z (km) -4660.803 -4661.872
    Velocity X (km/s) -5.696 -3.115
    Velocity Y (km/s) -1.051 -6.937
    Velocity Z (km/s) 4.947 -0.452

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5257 STARLINK-31858
    Semimajor Axis (a) 6857.048 km 6861.223 km
    Eccentricity (e) 0.000259 0.000109
    Inclination (i) 70.0000° 43.0022°
    RAAN 176.3664° 258.2412°
    Perigee Argument 263.5763° 274.1037°
    Mean Anomaly (M) 346.5653° 85.9690°
    Apogee 480.690 km 483.837 km
    Perigee 477.132 km 482.335 km
    Orbit Epoch 2026-10-12T08:00:02+0000 2026-10-12T07:08:35+0000

    STARLINK-5257 & STARLINK-31858 Collision Probability (Pc) Trend

    STARLINK-5257 & STARLINK-31858 Collision Probability (Pc) TrendNot Available

    STARLINK-5257 & STARLINK-31858 Miss Distance (Miss Distance) Trend

    STARLINK-5257 & STARLINK-31858 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5257Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31858Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5257Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31858Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5257

    No nearby objects data