Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.93361E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:42:33+0800
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    1 Object 1

    AOE ID 52999
    NORAD ID 52999
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64891
    NORAD ID 64891
    Object Type UNKNOWN
    Country
    TBD TBD

    Conjunction Constraints

    Parameter STARLINK-4217 OBJECT R
    Time of Closest Approach 2026-10-21T17:28:18+0000
    Collision Probability (Pc) 4.93361E-6
    Conjunction Distance (km) 1.619 km
    Relative Speed (km/s) 13.504 km/s
    Conjunction Risk Parameters R (Radial): -0.666 | I (In-track): 0.677 | C (Cross-track): -1.311
    Collision Risk Index (CRI) 0.49
    X Position (km) 1017.953 1016.584
    Position Y (km) 4349.532 4348.675
    Position Z (km) -5188.429 -5188.536
    Velocity X (km/s) -6.307 0.192
    Velocity Y (km/s) 3.811 -5.854
    Velocity Z (km/s) 1.958 -4.877

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4217 OBJECT R
    Semimajor Axis (a) 6840.883 km 6834.740 km
    Eccentricity (e) 0.000131 0.000822
    Inclination (i) 53.1590° 97.4706°
    RAAN 148.5902° 263.7841°
    Perigee Argument 95.7431° 95.8069°
    Mean Anomaly (M) 264.3720° 264.4111°
    Apogee 463.641 km 462.219 km
    Perigee 461.851 km 450.987 km
    Orbit Epoch 2026-10-19T07:56:28+0000 2026-10-19T22:16:27+0000

    STARLINK-4217 & OBJECT R Collision Probability (Pc) Trend

    STARLINK-4217 & OBJECT R Collision Probability (Pc) TrendNot Available

    STARLINK-4217 & OBJECT R Miss Distance (Miss Distance) Trend

    STARLINK-4217 & OBJECT R Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4217Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT RMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4217Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT RCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4217

    No nearby objects data