Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.539512E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-31T01:59:41+0800
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    1 Object 1

    AOE ID 53676
    NORAD ID 53676
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68631
    NORAD ID 68631
    Object Type UNKNOWN
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4621 OBJECT E
    Time of Closest Approach 2026-10-30T21:42:09+0000
    Collision Probability (Pc) 1.539512E-6
    Conjunction Distance (km) 2.704 km
    Relative Speed (km/s) 14.767 km/s
    Conjunction Risk Parameters R (Radial): 0.239 | I (In-track): -0.685 | C (Cross-track): 2.605
    Collision Risk Index (CRI) 0.39
    X Position (km) -5343.93 -5344.371
    Position Y (km) 889.767 892.335
    Position Z (km) 4176.376 4175.656
    Velocity X (km/s) 4.748 -4.38
    Velocity Y (km/s) 0.448 -4.16
    Velocity Z (km/s) 5.962 -4.691

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4621 OBJECT E
    Semimajor Axis (a) 6843.702 km 6867.367 km
    Eccentricity (e) 0.000155 0.003438
    Inclination (i) 97.2846° 60.0219°
    RAAN 174.9132° 21.8137°
    Perigee Argument 95.6075° 116.4078°
    Mean Anomaly (M) 264.5344° 244.0538°
    Apogee 466.626 km 512.841 km
    Perigee 464.504 km 465.619 km
    Orbit Epoch 2026-10-29T14:12:54+0000 2026-10-29T15:13:43+0000

    STARLINK-4621 & OBJECT E Collision Probability (Pc) Trend

    STARLINK-4621 & OBJECT E Collision Probability (Pc) TrendNot Available

    STARLINK-4621 & OBJECT E Miss Distance (Miss Distance) Trend

    STARLINK-4621 & OBJECT E Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4621Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT EMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4621Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT ECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4621

    No nearby objects data