Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.157065E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T18:46:42+0800
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    1 Object 1

    Name HST
    AOE ID 20580
    NORAD ID 20580
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69302
    NORAD ID 69302
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HST STARLINK-37804
    Time of Closest Approach 2026-09-13T19:56:06+0000
    Collision Probability (Pc) 5.157065E-6
    Conjunction Distance (km) 1.536 km
    Relative Speed (km/s) 11.257 km/s
    Conjunction Risk Parameters R (Radial): -1.326 | I (In-track): 0.515 | C (Cross-track): -0.578
    Collision Risk Index (CRI) 0.49
    X Position (km) -806.314 -806.596
    Position Y (km) 5978.476 5976.97
    Position Z (km) -3247.585 -3247.489
    Velocity X (km/s) -7.521 1.565
    Velocity Y (km/s) -1.216 -3.394
    Velocity Z (km/s) -0.37 -6.647

    Orbital Parameters 国际轨道数据源

    Parameter HST STARLINK-37804
    Semimajor Axis (a) 6849.110 km 6843.655 km
    Eccentricity (e) 0.000177 0.000214
    Inclination (i) 28.4729° 97.2796°
    RAAN 205.7820° 279.8599°
    Perigee Argument 38.6042° 106.4094°
    Mean Anomaly (M) 321.4681° 253.7383°
    Apogee 472.189 km 466.980 km
    Perigee 469.757 km 464.056 km
    Orbit Epoch 2026-09-12T03:41:35+0000 2026-09-12T00:44:42+0000

    HST & STARLINK-37804 Collision Probability (Pc) Trend

    HST & STARLINK-37804 Collision Probability (Pc) TrendNot Available

    HST & STARLINK-37804 Miss Distance (Miss Distance) Trend

    HST & STARLINK-37804 Miss Distance (Miss Distance) TrendNot Available

    HSTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37804Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HSTCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37804Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HST

    No nearby objects data