Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.304608E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:05:11+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 53637
    NORAD ID 53637
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4490 STARLINK-4396
    Time of Closest Approach 2026-09-06T05:11:40+0000
    Collision Probability (Pc) 1.304608E-6
    Conjunction Distance (km) 2.692 km
    Relative Speed (km/s) 10.981 km/s
    Conjunction Risk Parameters R (Radial): -2.68 | I (In-track): 0.162 | C (Cross-track): -0.175
    Collision Risk Index (CRI) 0.37
    X Position (km) 5348.589 5346.593
    Position Y (km) -2512.56 -2511.358
    Position Z (km) -3454.547 -3453.199
    Velocity X (km/s) 4.758 -0.252
    Velocity Y (km/s) 3.619 5.973
    Velocity Z (km/s) 4.741 -4.742

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4490 STARLINK-4396
    Semimajor Axis (a) 6840.807 km 6837.857 km
    Eccentricity (e) 0.000096 0.000120
    Inclination (i) 53.1618° 53.1605°
    RAAN 12.0658° 140.6159°
    Perigee Argument 80.9297° 69.2552°
    Mean Anomaly (M) 279.1814° 290.8579°
    Apogee 463.328 km 460.539 km
    Perigee 462.012 km 458.901 km
    Orbit Epoch 2026-09-03T19:31:30+0000 2026-09-03T16:52:49+0000

    STARLINK-4490 & STARLINK-4396 Collision Probability (Pc) Trend

    STARLINK-4490 & STARLINK-4396 Collision Probability (Pc) TrendNot Available

    STARLINK-4490 & STARLINK-4396 Miss Distance (Miss Distance) Trend

    STARLINK-4490 & STARLINK-4396 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4490Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4396Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4490Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4396Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4490

    No nearby objects data