Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.128949E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T12:01:44+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 69497
    NORAD ID 69497
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HST STARLINK-37798
    Time of Closest Approach 2026-09-04T19:49:12+0000
    Collision Probability (Pc) 2.128949E-6
    Conjunction Distance (km) 1.97 km
    Relative Speed (km/s) 8.705 km/s
    Conjunction Risk Parameters R (Radial): -1.305 | I (In-track): 1.214 | C (Cross-track): -0.838
    Collision Risk Index (CRI) 0.42
    X Position (km) 223.097 222.367
    Position Y (km) 6800.76 6799.338
    Position Z (km) -778.237 -779.388
    Velocity X (km/s) -6.762 0.945
    Velocity Y (km/s) -0.18 -0.884
    Velocity Z (km/s) -3.536 -7.52

    Orbital Parameters 国际轨道数据源

    Parameter HST STARLINK-37798
    Semimajor Axis (a) 6849.347 km 6843.688 km
    Eccentricity (e) 0.000148 0.000143
    Inclination (i) 28.4725° 97.2841°
    RAAN 265.5388° 267.8399°
    Perigee Argument 291.5545° 104.5744°
    Mean Anomaly (M) 68.4894° 255.5658°
    Apogee 472.223 km 466.534 km
    Perigee 470.197 km 464.568 km
    Orbit Epoch 2026-09-03T10:08:14+0000 2026-09-03T16:23:09+0000

    HST & STARLINK-37798 Collision Probability (Pc) Trend

    HST & STARLINK-37798 Collision Probability (Pc) TrendNot Available

    HST & STARLINK-37798 Miss Distance (Miss Distance) Trend

    HST & STARLINK-37798 Miss Distance (Miss Distance) TrendNot Available

    HSTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37798Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HSTCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37798Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HST

    No nearby objects data