Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.04786E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T08:05:22+0800
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    1 Object 1

    AOE ID 46035
    NORAD ID 46035
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 62386
    NORAD ID 62386
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1558 TOMORROW-S4
    Time of Closest Approach 2026-09-16T00:09:15+0000
    Collision Probability (Pc) 3.04786E-6
    Conjunction Distance (km) 1.837 km
    Relative Speed (km/s) 11.456 km/s
    Conjunction Risk Parameters R (Radial): 1.548 | I (In-track): -0.647 | C (Cross-track): 0.749
    Collision Risk Index (CRI) 0.45
    X Position (km) 5737.153 5737.93
    Position Y (km) -3623.756 -3625.415
    Position Z (km) 924.931 925.077
    Velocity X (km/s) 1.764 3.524
    Velocity Y (km/s) 4.346 4.217
    Velocity Z (km/s) 6.021 -5.298

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1558 TOMORROW-S4
    Semimajor Axis (a) 6848.832 km 6853.502 km
    Eccentricity (e) 0.000118 0.000435
    Inclination (i) 53.1609° 44.9814°
    RAAN 334.0200° 171.1238°
    Perigee Argument 83.8607° 192.4646°
    Mean Anomaly (M) 276.2529° 167.6131°
    Apogee 471.505 km 478.347 km
    Perigee 469.885 km 472.383 km
    Orbit Epoch 2026-09-13T09:28:22+0000 2026-09-13T04:02:49+0000

    STARLINK-1558 & TOMORROW-S4 Collision Probability (Pc) Trend

    STARLINK-1558 & TOMORROW-S4 Collision Probability (Pc) TrendNot Available

    STARLINK-1558 & TOMORROW-S4 Miss Distance (Miss Distance) Trend

    STARLINK-1558 & TOMORROW-S4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1558Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TOMORROW-S4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1558Collision Probability Trend

    Object 1 Probability TrendNot Available

    TOMORROW-S4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1558

    No nearby objects data