Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.695915E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:20:21+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 2026-10-21T07:46:23+0000
    Collision Probability (Pc) 1.695915E-6
    Conjunction Distance (km) 1.607 km
    Relative Speed (km/s) 2.4 km/s
    Conjunction Risk Parameters R (Radial): 1.001 | I (In-track): 1.242 | C (Cross-track): -0.197
    Collision Risk Index (CRI) 0.4
    X Position (km) 3710.04 3710.019
    Position Y (km) 1860.548 1861.945
    Position Z (km) 5428.027 5428.822
    Velocity X (km/s) -4.236 -2.531
    Velocity Y (km/s) 6.315 7.169
    Velocity Z (km/s) 0.729 -0.726

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3977 STARLINK-35040
    Semimajor Axis (a) 6840.871 km 6840.785 km
    Eccentricity (e) 0.000123 0.000229
    Inclination (i) 53.1606° 53.1569°
    RAAN 318.4005° 296.0914°
    Perigee Argument 87.2027° 335.2262°
    Mean Anomaly (M) 272.9117° 24.8631°
    Apogee 463.576 km 464.212 km
    Perigee 461.892 km 461.084 km
    Orbit Epoch 2026-10-19T02:15:42+0000 2026-10-19T00:38:33+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