Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.923757E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T21:35:00+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 2026-10-29T07:43:15+0000
    Collision Probability (Pc) 2.923757E-5
    Conjunction Distance (km) 0.835 km
    Relative Speed (km/s) 6.898 km/s
    Conjunction Risk Parameters R (Radial): -0.085 | I (In-track): 0.742 | C (Cross-track): -0.371
    Collision Risk Index (CRI) 0.64
    X Position (km) -4497.352 -4497.463
    Position Y (km) 936.451 935.626
    Position Z (km) 5059.38 5059.318
    Velocity X (km/s) 1.114 -3.892
    Velocity Y (km/s) -7.194 -6.152
    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) 6840.890 km 6840.811 km
    Eccentricity (e) 0.000116 0.000121
    Inclination (i) 53.1587° 53.1589°
    RAAN 119.6375° 51.9251°
    Perigee Argument 88.5788° 49.2226°
    Mean Anomaly (M) 271.5347° 310.8882°
    Apogee 463.546 km 463.502 km
    Perigee 461.960 km 461.846 km
    Orbit Epoch 2026-10-27T19:28:19+0000 2026-10-27T14:35:28+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