Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.788141E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:05:16+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 64891
    NORAD ID 64891
    Object Type UNKNOWN
    Country
    TBD TBD

    Conjunction Constraints

    Parameter STARLINK-4490 OBJECT R
    Time of Closest Approach 2026-09-06T14:13:48+0000
    Collision Probability (Pc) 1.788141E-6
    Conjunction Distance (km) 2.43 km
    Relative Speed (km/s) 13.975 km/s
    Conjunction Risk Parameters R (Radial): -1.801 | I (In-track): 0.643 | C (Cross-track): 1.499
    Collision Risk Index (CRI) 0.4
    X Position (km) -3289.43 -3288.021
    Position Y (km) -3567.283 -3567.734
    Position Z (km) -4829.147 -4827.22
    Velocity X (km/s) 6.686 -4.611
    Velocity Y (km/s) -2.267 -2.942
    Velocity Z (km/s) -2.882 5.315

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4490 OBJECT R
    Semimajor Axis (a) 6840.807 km 6838.359 km
    Eccentricity (e) 0.000096 0.000354
    Inclination (i) 53.1618° 97.4629°
    RAAN 12.0658° 217.0792°
    Perigee Argument 80.9297° 255.1822°
    Mean Anomaly (M) 279.1814° 104.9029°
    Apogee 463.328 km 462.644 km
    Perigee 462.012 km 457.800 km
    Orbit Epoch 2026-09-03T19:31:30+0000 2026-09-03T20:43:42+0000

    STARLINK-4490 & OBJECT R Collision Probability (Pc) Trend

    STARLINK-4490 & OBJECT R Collision Probability (Pc) TrendNot Available

    STARLINK-4490 & OBJECT R Miss Distance (Miss Distance) Trend

    STARLINK-4490 & OBJECT R Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4490Miss 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-4490Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT RCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4490

    No nearby objects data