Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.517717E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T06:16:12+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) 3.517717E-6
    Conjunction Distance (km) 1.813 km
    Relative Speed (km/s) 13.504 km/s
    Conjunction Risk Parameters R (Radial): -0.693 | I (In-track): -0.777 | C (Cross-track): 1.484
    Collision Risk Index (CRI) 0.46
    X Position (km) 1015.142 1016.486
    Position Y (km) 4351.279 4351.323
    Position Z (km) -5187.512 -5186.297
    Velocity X (km/s) -6.307 0.192
    Velocity Y (km/s) 3.808 -5.852
    Velocity Z (km/s) 1.961 -4.88

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4217 OBJECT R
    Semimajor Axis (a) 6840.877 km 6834.693 km
    Eccentricity (e) 0.000135 0.000822
    Inclination (i) 53.1581° 97.4706°
    RAAN 145.5461° 264.3793°
    Perigee Argument 91.4286° 94.4633°
    Mean Anomaly (M) 268.6871° 265.7550°
    Apogee 463.662 km 462.175 km
    Perigee 461.818 km 450.937 km
    Orbit Epoch 2026-10-19T23:34:25+0000 2026-10-20T12:20:29+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