Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.925601E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T12:01:41+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 68613
    NORAD ID 68613
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HST STARLINK-36187
    Time of Closest Approach 2026-09-06T06:16:38+0000
    Collision Probability (Pc) 2.925601E-6
    Conjunction Distance (km) 1.937 km
    Relative Speed (km/s) 13.444 km/s
    Conjunction Risk Parameters R (Radial): -1.244 | I (In-track): 0.714 | C (Cross-track): 1.302
    Collision Risk Index (CRI) 0.44
    X Position (km) 106.444 105.216
    Position Y (km) 6700.291 6699.27
    Position Z (km) -1417.474 -1416.379
    Velocity X (km/s) -6.866 1.013
    Velocity Y (km/s) -0.583 1.541
    Velocity Z (km/s) -3.279 7.404

    Orbital Parameters 国际轨道数据源

    Parameter HST STARLINK-36187
    Semimajor Axis (a) 6849.347 km 6843.696 km
    Eccentricity (e) 0.000148 0.000170
    Inclination (i) 28.4725° 97.2853°
    RAAN 265.5388° 84.4651°
    Perigee Argument 291.5545° 89.6586°
    Mean Anomaly (M) 68.4894° 270.4852°
    Apogee 472.223 km 466.726 km
    Perigee 470.197 km 464.392 km
    Orbit Epoch 2026-09-03T10:08:14+0000 2026-09-03T03:09:22+0000

    HST & STARLINK-36187 Collision Probability (Pc) Trend

    HST & STARLINK-36187 Collision Probability (Pc) TrendNot Available

    HST & STARLINK-36187 Miss Distance (Miss Distance) Trend

    HST & STARLINK-36187 Miss Distance (Miss Distance) TrendNot Available

    HSTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36187Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HSTCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36187Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HST

    No nearby objects data