Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    5.44009E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T17:29:43+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 65603
    NORAD ID 65603
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HST STARLINK-35250
    Time of Closest Approach 2026-10-21T07:40:47+0000
    Collision Probability (Pc) 5.44009E-5
    Conjunction Distance (km) 0.746 km
    Relative Speed (km/s) 10.051 km/s
    Conjunction Risk Parameters R (Radial): 0.639 | I (In-track): -0.283 | C (Cross-track): -0.259
    Collision Risk Index (CRI) 0.7
    X Position (km) 6202.706 6203.394
    Position Y (km) -741.376 -741.663
    Position Z (km) 2790.652 2790.615
    Velocity X (km/s) 0.033 -3.198
    Velocity Y (km/s) 7.402 -0.685
    Velocity Z (km/s) 1.882 6.899

    Orbital Parameters 国际轨道数据源

    Parameter HST STARLINK-35250
    Semimajor Axis (a) 6847.955 km 6843.668 km
    Eccentricity (e) 0.000216 0.000130
    Inclination (i) 28.4737° 97.2842°
    RAAN 308.4466° 354.5881°
    Perigee Argument 102.7271° 87.5673°
    Mean Anomaly (M) 257.3567° 272.5719°
    Apogee 471.298 km 466.423 km
    Perigee 468.338 km 464.639 km
    Orbit Epoch 2026-10-19T17:54:10+0000 2026-10-19T10:09:29+0000

    HST & STARLINK-35250 Collision Probability (Pc) Trend

    HST & STARLINK-35250 Collision Probability (Pc) TrendNot Available

    HST & STARLINK-35250 Miss Distance (Miss Distance) Trend

    HST & STARLINK-35250 Miss Distance (Miss Distance) TrendNot Available

    HSTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35250Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HSTCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35250Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HST

    No nearby objects data