Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.561218E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T17:30:32+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 53081
    NORAD ID 53081
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HST STARLINK-4326
    Time of Closest Approach 2026-10-19T23:16:18+0000
    Collision Probability (Pc) 2.561218E-6
    Conjunction Distance (km) 2.041 km
    Relative Speed (km/s) 13.476 km/s
    Conjunction Risk Parameters R (Radial): 1.192 | I (In-track): 0.769 | C (Cross-track): 1.468
    Collision Risk Index (CRI) 0.43
    X Position (km) -1847.448 -1849.009
    Position Y (km) 6459.649 6460.227
    Position Z (km) 1302.393 1303.574
    Velocity X (km/s) -6.754 1.347
    Velocity Y (km/s) -1.253 -1.125
    Velocity Z (km/s) -3.339 7.429

    Orbital Parameters 国际轨道数据源

    Parameter HST STARLINK-4326
    Semimajor Axis (a) 6847.990 km 6843.696 km
    Eccentricity (e) 0.000213 0.000189
    Inclination (i) 28.4737° 97.2826°
    RAAN 315.1378° 106.1698°
    Perigee Argument 93.4246° 89.8987°
    Mean Anomaly (M) 266.6595° 270.2472°
    Apogee 471.314 km 466.853 km
    Perigee 468.392 km 464.265 km
    Orbit Epoch 2026-10-18T18:27:05+0000 2026-10-18T17:28:02+0000

    HST & STARLINK-4326 Collision Probability (Pc) Trend

    HST & STARLINK-4326 Collision Probability (Pc) TrendNot Available

    HST & STARLINK-4326 Miss Distance (Miss Distance) Trend

    HST & STARLINK-4326 Miss Distance (Miss Distance) TrendNot Available

    HSTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4326Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HSTCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4326Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HST

    No nearby objects data