Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.417355E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T02:56:17+0800
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    1 Object 1

    AOE ID 49410
    NORAD ID 49410
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55110
    NORAD ID 55110
    Object Type PAYLOAD
    Country
    CH CH

    Conjunction Constraints

    Parameter STARLINK-3147 ASTROCAST-0401
    Time of Closest Approach 2026-10-20T04:35:06+0000
    Collision Probability (Pc) 2.417355E-6
    Conjunction Distance (km) 2.041 km
    Relative Speed (km/s) 12.279 km/s
    Conjunction Risk Parameters R (Radial): -0.27 | I (In-track): -1.202 | C (Cross-track): -1.626
    Collision Risk Index (CRI) 0.43
    X Position (km) 3911.156 3912.574
    Position Y (km) 1281.842 1280.913
    Position Z (km) 5464.12 5462.984
    Velocity X (km/s) -1.921 -5.143
    Velocity Y (km/s) 7.38 -3.439
    Velocity Z (km/s) -0.356 4.472

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3147 ASTROCAST-0401
    Semimajor Axis (a) 6848.858 km 6847.916 km
    Eccentricity (e) 0.000133 0.000857
    Inclination (i) 53.1602° 97.5540°
    RAAN 288.1341° 27.2610°
    Perigee Argument 84.6823° 124.1119°
    Mean Anomaly (M) 275.4330° 236.0936°
    Apogee 471.632 km 475.652 km
    Perigee 469.810 km 463.906 km
    Orbit Epoch 2026-10-18T23:59:29+0000 2026-10-19T04:50:18+0000

    STARLINK-3147 & ASTROCAST-0401 Collision Probability (Pc) Trend

    STARLINK-3147 & ASTROCAST-0401 Collision Probability (Pc) TrendNot Available

    STARLINK-3147 & ASTROCAST-0401 Miss Distance (Miss Distance) Trend

    STARLINK-3147 & ASTROCAST-0401 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3147Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ASTROCAST-0401Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3147Collision Probability Trend

    Object 1 Probability TrendNot Available

    ASTROCAST-0401Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3147

    No nearby objects data