Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.513603E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T17:03:44+0800
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    1 Object 1

    AOE ID 53285
    NORAD ID 53285
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59441
    NORAD ID 59441
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4173 STARLINK-31693
    Time of Closest Approach 2026-09-04T10:28:32+0000
    Collision Probability (Pc) 9.513603E-7
    Conjunction Distance (km) 2.965 km
    Relative Speed (km/s) 7.882 km/s
    Conjunction Risk Parameters R (Radial): -2.897 | I (In-track): 0.537 | C (Cross-track): 0.319
    Collision Risk Index (CRI) 0.35
    X Position (km) 3736.667 3738.643
    Position Y (km) 3003.221 3004.008
    Position Z (km) -4883.351 -4885.416
    Velocity X (km/s) -1.899 -6.28
    Velocity Y (km/s) 6.851 3.328
    Velocity Z (km/s) 2.762 -2.762

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4173 STARLINK-31693
    Semimajor Axis (a) 6837.902 km 6840.865 km
    Eccentricity (e) 0.000111 0.000139
    Inclination (i) 53.1598° 53.1602°
    RAAN 90.6613° 171.9383°
    Perigee Argument 89.7268° 110.7847°
    Mean Anomaly (M) 270.3862° 249.3305°
    Apogee 460.527 km 463.680 km
    Perigee 459.003 km 461.776 km
    Orbit Epoch 2026-09-03T23:48:51+0000 2026-09-03T19:21:05+0000

    STARLINK-4173 & STARLINK-31693 Collision Probability (Pc) Trend

    STARLINK-4173 & STARLINK-31693 Collision Probability (Pc) TrendNot Available

    STARLINK-4173 & STARLINK-31693 Miss Distance (Miss Distance) Trend

    STARLINK-4173 & STARLINK-31693 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4173Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31693Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4173Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31693Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4173

    No nearby objects data