Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    3.91268E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T10:43:28+0800
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    1 Object 1

    AOE ID 47978
    NORAD ID 47978
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64608
    NORAD ID 64608
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1647 STARLINK-34519
    Time of Closest Approach 2026-10-22T00:03:27+0000
    Collision Probability (Pc) 3.91268E-7
    Conjunction Distance (km) 2.087 km
    Relative Speed (km/s) 0.149 km/s
    Conjunction Risk Parameters R (Radial): -2.029 | I (In-track): 0.485 | C (Cross-track): -0.002
    Collision Risk Index (CRI) 0.27
    X Position (km) 15.71 16.199
    Position Y (km) 4097.534 4098.751
    Position Z (km) 5464.917 5466.54
    Velocity X (km/s) -7.639 -7.639
    Velocity Y (km/s) 0.099 -0.02
    Velocity Z (km/s) -0.051 0.038

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1647 STARLINK-34519
    Semimajor Axis (a) 6838.305 km 6840.782 km
    Eccentricity (e) 0.000108 0.000118
    Inclination (i) 53.1598° 53.1585°
    RAAN 6.0067° 8.6647°
    Perigee Argument 65.6141° 93.4655°
    Mean Anomaly (M) 356.7409° 266.6482°
    Apogee 460.904 km 463.453 km
    Perigee 459.432 km 461.837 km
    Orbit Epoch 2026-10-20T12:00:03+0000 2026-10-20T05:27:48+0000

    STARLINK-1647 & STARLINK-34519 Collision Probability (Pc) Trend

    STARLINK-1647 & STARLINK-34519 Collision Probability (Pc) TrendNot Available

    STARLINK-1647 & STARLINK-34519 Miss Distance (Miss Distance) Trend

    STARLINK-1647 & STARLINK-34519 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1647Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34519Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1647Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34519Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1647

    No nearby objects data