Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.934846E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T13:20:47+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 68403
    NORAD ID 68403
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HST STARLINK-37218
    Time of Closest Approach 2026-10-29T11:44:54+0000
    Collision Probability (Pc) 1.934846E-6
    Conjunction Distance (km) 2.306 km
    Relative Speed (km/s) 13.409 km/s
    Conjunction Risk Parameters R (Radial): 2.279 | I (In-track): 0.171 | C (Cross-track): 0.31
    Collision Risk Index (CRI) 0.41
    X Position (km) 283.113 282.923
    Position Y (km) 6656.691 6658.966
    Position Z (km) -1574.152 -1574.475
    Velocity X (km/s) -6.921 1.066
    Velocity Y (km/s) -0.457 1.688
    Velocity Z (km/s) -3.19 7.364

    Orbital Parameters 国际轨道数据源

    Parameter HST STARLINK-37218
    Semimajor Axis (a) 6847.682 km 6843.689 km
    Eccentricity (e) 0.000192 0.000152
    Inclination (i) 28.4737° 97.2873°
    RAAN 252.2364° 84.2930°
    Perigee Argument 183.4227° 87.2728°
    Mean Anomaly (M) 176.6356° 272.8689°
    Apogee 470.864 km 466.591 km
    Perigee 468.226 km 464.513 km
    Orbit Epoch 2026-10-27T22:53:09+0000 2026-10-27T22:13:12+0000

    HST & STARLINK-37218 Collision Probability (Pc) Trend

    HST & STARLINK-37218 Collision Probability (Pc) TrendNot Available

    HST & STARLINK-37218 Miss Distance (Miss Distance) Trend

    HST & STARLINK-37218 Miss Distance (Miss Distance) TrendNot Available

    HSTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37218Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HSTCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37218Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HST

    No nearby objects data