Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.169573E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:07:07+0800
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    1 Object 1

    AOE ID 49743
    NORAD ID 49743
    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-3239 ASTROCAST-0404
    Time of Closest Approach 2026-10-20T13:04:08+0000
    Collision Probability (Pc) 2.169573E-6
    Conjunction Distance (km) 2.244 km
    Relative Speed (km/s) 14.715 km/s
    Conjunction Risk Parameters R (Radial): 2.108 | I (In-track): 0.211 | C (Cross-track): 0.741
    Collision Risk Index (CRI) 0.42
    X Position (km) 5603.109 5604.523
    Position Y (km) 3494.031 3495.75
    Position Z (km) -1828.028 -1828.306
    Velocity X (km/s) -3.858 2.259
    Velocity Y (km/s) 3.185 0.182
    Velocity Z (km/s) -5.759 7.282

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3239 ASTROCAST-0404
    Semimajor Axis (a) 6848.828 km 6849.388 km
    Eccentricity (e) 0.000131 0.000553
    Inclination (i) 53.1612° 97.5652°
    RAAN 206.2144° 28.5146°
    Perigee Argument 95.1604° 264.5207°
    Mean Anomaly (M) 264.9548° 95.5403°
    Apogee 471.590 km 475.038 km
    Perigee 469.792 km 467.464 km
    Orbit Epoch 2026-10-19T04:52:57+0000 2026-10-19T05:46:34+0000

    STARLINK-3239 & ASTROCAST-0404 Collision Probability (Pc) Trend

    STARLINK-3239 & ASTROCAST-0404 Collision Probability (Pc) TrendNot Available

    STARLINK-3239 & ASTROCAST-0404 Miss Distance (Miss Distance) Trend

    STARLINK-3239 & ASTROCAST-0404 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3239Miss 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-3239Collision Probability Trend

    Object 1 Probability TrendNot Available

    ASTROCAST-0404Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3239

    No nearby objects data