Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.669414E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T13:37:24+0800
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    1 Object 1

    AOE ID 54158
    NORAD ID 54158
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name SEMI-1L
    AOE ID 66294
    NORAD ID 66294
    Object Type PAYLOAD
    Country
    TR TR

    Conjunction Constraints

    Parameter STARLINK-5297 SEMI-1L
    Time of Closest Approach 2026-09-14T10:57:10+0000
    Collision Probability (Pc) 4.669414E-5
    Conjunction Distance (km) 0.779 km
    Relative Speed (km/s) 9.834 km/s
    Conjunction Risk Parameters R (Radial): 0.403 | I (In-track): -0.513 | C (Cross-track): -0.425
    Collision Risk Index (CRI) 0.68
    X Position (km) -4600.851 -4600.189
    Position Y (km) -3678.89 -3679.212
    Position Z (km) -3553.815 -3553.56
    Velocity X (km/s) 1.138 5.655
    Velocity Y (km/s) -5.913 -3.47
    Velocity Z (km/s) 4.654 -3.732

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5297 SEMI-1L
    Semimajor Axis (a) 6876.877 km 6878.622 km
    Eccentricity (e) 0.000090 0.000333
    Inclination (i) 53.1595° 45.4048°
    RAAN 257.2003° 16.8127°
    Perigee Argument 72.8181° 226.7907°
    Mean Anomaly (M) 358.6641° 133.2702°
    Apogee 499.360 km 502.773 km
    Perigee 498.120 km 498.197 km
    Orbit Epoch 2026-09-11T22:00:02+0000 2026-09-11T17:22:03+0000

    STARLINK-5297 & SEMI-1L Collision Probability (Pc) Trend

    STARLINK-5297 & SEMI-1L Collision Probability (Pc) TrendNot Available

    STARLINK-5297 & SEMI-1L Miss Distance (Miss Distance) Trend

    STARLINK-5297 & SEMI-1L Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5297Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SEMI-1LMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5297Collision Probability Trend

    Object 1 Probability TrendNot Available

    SEMI-1LCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5297

    No nearby objects data