Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    5.891534E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-12T22:53:12+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 67966
    NORAD ID 67966
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HST STARLINK-36820
    Time of Closest Approach 2026-10-12T21:28:25+0000
    Collision Probability (Pc) 5.891534E-4
    Conjunction Distance (km) 0.237 km
    Relative Speed (km/s) 10.152 km/s
    Conjunction Risk Parameters R (Radial): -0.221 | I (In-track): 0.064 | C (Cross-track): -0.053
    Collision Risk Index (CRI) 0.9
    X Position (km) 2849.289 2849.328
    Position Y (km) -5531.324 -5531.497
    Position Z (km) -2863.103 -2863.26
    Velocity X (km/s) 6.931 0.497
    Velocity Y (km/s) 2.669 -3.289
    Velocity Z (km/s) 1.748 6.863

    Orbital Parameters 国际轨道数据源

    Parameter HST STARLINK-36820
    Semimajor Axis (a) 6848.246 km 6843.616 km
    Eccentricity (e) 0.000183 0.000138
    Inclination (i) 28.4738° 97.2844°
    RAAN 359.7421° 292.9829°
    Perigee Argument 28.5395° 82.2480°
    Mean Anomaly (M) 331.5301° 277.8919°
    Apogee 471.363 km 466.421 km
    Perigee 468.855 km 464.537 km
    Orbit Epoch 2026-10-12T06:06:18+0000 2026-10-11T23:39:25+0000

    HST & STARLINK-36820 Collision Probability (Pc) Trend

    HST & STARLINK-36820 Collision Probability (Pc) TrendNot Available

    HST & STARLINK-36820 Miss Distance (Miss Distance) Trend

    HST & STARLINK-36820 Miss Distance (Miss Distance) TrendNot Available

    HSTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36820Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HSTCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36820Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HST

    No nearby objects data