Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    8.245925E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T08:28:55+0800
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    1 Object 1

    Name SSA
    AOE ID 13844
    NORAD ID 13844
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54187
    NORAD ID 54187
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SSA STARLINK-5240
    Time of Closest Approach 2026-10-21T08:16:18+0000
    Collision Probability (Pc) 8.245925E-6
    Conjunction Distance (km) 0.93 km
    Relative Speed (km/s) 1.71 km/s
    Conjunction Risk Parameters R (Radial): 0.298 | I (In-track): -0.854 | C (Cross-track): -0.21
    Collision Risk Index (CRI) 0.53
    X Position (km) -5411.687 -5411.902
    Position Y (km) -2475.931 -2475.346
    Position Z (km) 3365.056 3365.745
    Velocity X (km/s) -1.407 -0.298
    Velocity Y (km/s) -5.123 -5.921
    Velocity Z (km/s) -5.844 -4.817

    Orbital Parameters 国际轨道数据源

    Parameter SSA STARLINK-5240
    Semimajor Axis (a) 7348.232 km 6840.859 km
    Eccentricity (e) 0.070067 0.000097
    Inclination (i) 63.3140° 53.1618°
    RAAN 46.7744° 58.9221°
    Perigee Argument 137.0477° 74.3904°
    Mean Anomaly (M) 228.7526° 285.7206°
    Apogee 1484.964 km 463.388 km
    Perigee 455.226 km 462.056 km
    Orbit Epoch 2026-10-19T06:50:26+0000 2026-10-19T08:45:30+0000

    SSA & STARLINK-5240 Collision Probability (Pc) Trend

    SSA & STARLINK-5240 Collision Probability (Pc) TrendNot Available

    SSA & STARLINK-5240 Miss Distance (Miss Distance) Trend

    SSA & STARLINK-5240 Miss Distance (Miss Distance) TrendNot Available

    SSAMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5240Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SSACollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5240Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SSA

    No nearby objects data