Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.239147E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T00:48:07+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53570
    NORAD ID 53570
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53728
    NORAD ID 53728
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4550 STARLINK-4640
    Time of Closest Approach 2026-09-03T03:59:55+0000
    Collision Probability (Pc) 1.239147E-6
    Conjunction Distance (km) 2.904 km
    Relative Speed (km/s) 12.043 km/s
    Conjunction Risk Parameters R (Radial): 2.365 | I (In-track): 1.029 | C (Cross-track): -1.333
    Collision Risk Index (CRI) 0.37
    X Position (km) -6033.564 -6030.761
    Position Y (km) 2857.22 2857.756
    Position Z (km) -1516.164 -1515.632
    Velocity X (km/s) -0.808 -3.209
    Velocity Y (km/s) -4.808 -3.671
    Velocity Z (km/s) -5.872 5.873

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4550 STARLINK-4640
    Semimajor Axis (a) 6843.425 km 6840.877 km
    Eccentricity (e) 0.000122 0.000136
    Inclination (i) 53.1597° 53.1589°
    RAAN 330.5003° 169.6135°
    Perigee Argument 98.0650° 87.3295°
    Mean Anomaly (M) 262.0491° 272.7864°
    Apogee 466.127 km 463.672 km
    Perigee 464.449 km 461.808 km
    Orbit Epoch 2026-09-01T22:59:35+0000 2026-09-02T01:29:35+0000

    STARLINK-4550 & STARLINK-4640 Collision Probability (Pc) Trend

    STARLINK-4550 & STARLINK-4640 Collision Probability (Pc) TrendNot Available

    STARLINK-4550 & STARLINK-4640 Miss Distance (Miss Distance) Trend

    STARLINK-4550 & STARLINK-4640 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4550Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4640Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4550Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4640Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4550

    No nearby objects data