Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.633324E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:48:22+0800
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    1 Object 1

    AOE ID 52640
    NORAD ID 52640
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 65480
    NORAD ID 65480
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3977 STARLINK-35040
    Time of Closest Approach 2026-10-20T16:55:18+0000
    Collision Probability (Pc) 8.633324E-7
    Conjunction Distance (km) 2.112 km
    Relative Speed (km/s) 2.395 km/s
    Conjunction Risk Parameters R (Radial): -0.674 | I (In-track): 1.977 | C (Cross-track): 0.314
    Collision Risk Index (CRI) 0.34
    X Position (km) -3618.208 -3616.864
    Position Y (km) -2049.952 -2051.49
    Position Z (km) -5438.841 -5438.306
    Velocity X (km/s) 4.54 2.888
    Velocity Y (km/s) -6.081 -7.019
    Velocity Z (km/s) -0.729 0.728

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3977 STARLINK-35040
    Semimajor Axis (a) 6840.854 km 6840.619 km
    Eccentricity (e) 0.000125 0.000137
    Inclination (i) 53.1607° 53.1591°
    RAAN 316.8780° 294.8759°
    Perigee Argument 86.3292° 71.7214°
    Mean Anomaly (M) 273.7853° 288.3937°
    Apogee 463.572 km 463.420 km
    Perigee 461.862 km 461.544 km
    Orbit Epoch 2026-10-19T10:04:40+0000 2026-10-19T06:53:42+0000

    STARLINK-3977 & STARLINK-35040 Collision Probability (Pc) Trend

    STARLINK-3977 & STARLINK-35040 Collision Probability (Pc) TrendNot Available

    STARLINK-3977 & STARLINK-35040 Miss Distance (Miss Distance) Trend

    STARLINK-3977 & STARLINK-35040 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3977Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35040Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3977Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35040Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3977

    No nearby objects data