Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.116855E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T08:52:20+0800
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    1 Object 1

    AOE ID 57477
    NORAD ID 57477
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59351
    NORAD ID 59351
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-30176 STARLINK-31555
    Time of Closest Approach 2026-09-11T21:06:55+0000
    Collision Probability (Pc) 4.116855E-5
    Conjunction Distance (km) 0.739 km
    Relative Speed (km/s) 6.4 km/s
    Conjunction Risk Parameters R (Radial): -0.605 | I (In-track): 0.386 | C (Cross-track): 0.174
    Collision Risk Index (CRI) 0.67
    X Position (km) 3057.118 3057.738
    Position Y (km) 4601.156 4601.326
    Position Z (km) 4060.027 4060.39
    Velocity X (km/s) -6.818 -4.716
    Velocity Y (km/s) 2.251 5.413
    Velocity Z (km/s) 2.576 -2.576

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30176 STARLINK-31555
    Semimajor Axis (a) 6861.107 km 6861.214 km
    Eccentricity (e) 0.000108 0.000127
    Inclination (i) 43.0035° 43.0007°
    RAAN 20.2916° 296.7068°
    Perigee Argument 261.4325° 278.4171°
    Mean Anomaly (M) 98.6404° 81.6537°
    Apogee 483.709 km 483.947 km
    Perigee 482.231 km 482.207 km
    Orbit Epoch 2026-09-09T01:22:37+0000 2026-09-10T10:04:12+0000

    STARLINK-30176 & STARLINK-31555 Collision Probability (Pc) Trend

    STARLINK-30176 & STARLINK-31555 Collision Probability (Pc) TrendNot Available

    STARLINK-30176 & STARLINK-31555 Miss Distance (Miss Distance) Trend

    STARLINK-30176 & STARLINK-31555 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30176Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31555Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30176Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31555Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30176

    No nearby objects data