Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.776328E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:09:56+0800
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    1 Object 1

    AOE ID 51752
    NORAD ID 51752
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55112
    NORAD ID 55112
    Object Type PAYLOAD
    Country
    CH CH

    Conjunction Constraints

    Parameter STARLINK-3511 ASTROCAST-0404
    Time of Closest Approach 2026-10-21T23:00:27+0000
    Collision Probability (Pc) 5.776328E-6
    Conjunction Distance (km) 1.358 km
    Relative Speed (km/s) 7.33 km/s
    Conjunction Risk Parameters R (Radial): -1.349 | I (In-track): -0.129 | C (Cross-track): 0.078
    Collision Risk Index (CRI) 0.5
    X Position (km) -4978.344 -4977.461
    Position Y (km) -2394.667 -2394.193
    Position Z (km) -4056.66 -4055.745
    Velocity X (km/s) 5.174 3.472
    Velocity Y (km/s) -3.804 3.052
    Velocity Z (km/s) -4.108 -6.064

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3511 ASTROCAST-0404
    Semimajor Axis (a) 6848.828 km 6849.388 km
    Eccentricity (e) 0.000137 0.000553
    Inclination (i) 53.1617° 97.5652°
    RAAN 4.9374° 28.5146°
    Perigee Argument 66.1573° 264.5207°
    Mean Anomaly (M) 293.9572° 95.5403°
    Apogee 471.632 km 475.038 km
    Perigee 469.750 km 467.464 km
    Orbit Epoch 2026-10-19T05:48:46+0000 2026-10-19T05:46:34+0000

    STARLINK-3511 & ASTROCAST-0404 Collision Probability (Pc) Trend

    STARLINK-3511 & ASTROCAST-0404 Collision Probability (Pc) TrendNot Available

    STARLINK-3511 & ASTROCAST-0404 Miss Distance (Miss Distance) Trend

    STARLINK-3511 & ASTROCAST-0404 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3511Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ASTROCAST-0404Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3511Collision Probability Trend

    Object 1 Probability TrendNot Available

    ASTROCAST-0404Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3511

    No nearby objects data