Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.826528E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T16:28:36+0800
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    1 Object 1

    AOE ID 53431
    NORAD ID 53431
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 60288
    NORAD ID 60288
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4548 STARLINK-31997
    Time of Closest Approach 2026-09-14T13:50:06+0000
    Collision Probability (Pc) 8.826528E-7
    Conjunction Distance (km) 2.952 km
    Relative Speed (km/s) 6.821 km/s
    Conjunction Risk Parameters R (Radial): 2.95 | I (In-track): 0.099 | C (Cross-track): 0.055
    Collision Risk Index (CRI) 0.34
    X Position (km) -4377.262 -4379.118
    Position Y (km) -1377.732 -1378.434
    Position Z (km) -5076.566 -5078.75
    Velocity X (km/s) 4.461 -0.364
    Velocity Y (km/s) -5.747 -7.265
    Velocity Z (km/s) -2.288 2.288

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4548 STARLINK-31997
    Semimajor Axis (a) 6837.872 km 6840.818 km
    Eccentricity (e) 0.000117 0.000116
    Inclination (i) 53.1608° 53.1590°
    RAAN 331.0989° 264.1133°
    Perigee Argument 90.0742° 81.8867°
    Mean Anomaly (M) 270.0395° 278.2267°
    Apogee 460.537 km 463.472 km
    Perigee 458.933 km 461.890 km
    Orbit Epoch 2026-09-12T12:19:50+0000 2026-09-12T07:25:03+0000

    STARLINK-4548 & STARLINK-31997 Collision Probability (Pc) Trend

    STARLINK-4548 & STARLINK-31997 Collision Probability (Pc) TrendNot Available

    STARLINK-4548 & STARLINK-31997 Miss Distance (Miss Distance) Trend

    STARLINK-4548 & STARLINK-31997 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4548Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31997Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4548Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31997Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4548

    No nearby objects data