Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    5.164463E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T09:17:16+0800
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    1 Object 1

    AOE ID 53409
    NORAD ID 53409
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63381
    NORAD ID 63381
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4490 STARLINK-33643
    Time of Closest Approach 2026-10-25T20:52:03+0000
    Collision Probability (Pc) 5.164463E-5
    Conjunction Distance (km) 0.698 km
    Relative Speed (km/s) 6.898 km/s
    Conjunction Risk Parameters R (Radial): -0.419 | I (In-track): 0.5 | C (Cross-track): -0.246
    Collision Risk Index (CRI) 0.69
    X Position (km) -4580.203 -4579.876
    Position Y (km) -350.757 -351.291
    Position Z (km) 5059.398 5059.091
    Velocity X (km/s) 3.07 -2.028
    Velocity Y (km/s) -6.601 -6.992
    Velocity Z (km/s) 2.315 -2.315

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4490 STARLINK-33643
    Semimajor Axis (a) 6840.887 km 6840.834 km
    Eccentricity (e) 0.000127 0.000127
    Inclination (i) 53.1589° 53.1596°
    RAAN 137.6031° 68.3695°
    Perigee Argument 79.9203° 89.5323°
    Mean Anomaly (M) 280.1943° 270.5826°
    Apogee 463.621 km 463.569 km
    Perigee 461.879 km 461.825 km
    Orbit Epoch 2026-10-23T23:14:21+0000 2026-10-24T02:10:29+0000

    STARLINK-4490 & STARLINK-33643 Collision Probability (Pc) Trend

    STARLINK-4490 & STARLINK-33643 Collision Probability (Pc) TrendNot Available

    STARLINK-4490 & STARLINK-33643 Miss Distance (Miss Distance) Trend

    STARLINK-4490 & STARLINK-33643 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4490Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33643Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4490Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33643Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4490

    No nearby objects data