Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.936781E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T07:47:01+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 46034
    NORAD ID 46034
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53508
    NORAD ID 53508
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1557 STARLINK-4443
    Time of Closest Approach 2026-09-15T00:32:03+0000
    Collision Probability (Pc) 9.936781E-7
    Conjunction Distance (km) 2.891 km
    Relative Speed (km/s) 8.075 km/s
    Conjunction Risk Parameters R (Radial): -2.706 | I (In-track): -0.856 | C (Cross-track): -0.541
    Collision Risk Index (CRI) 0.35
    X Position (km) 5007.687 5006.389
    Position Y (km) 804.766 804.178
    Position Z (km) 4593.042 4590.527
    Velocity X (km/s) -3.958 -4.785
    Velocity Y (km/s) 5.62 -2.091
    Velocity Z (km/s) 3.322 5.57

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1557 STARLINK-4443
    Semimajor Axis (a) 6848.833 km 6843.727 km
    Eccentricity (e) 0.000116 0.000108
    Inclination (i) 53.1601° 97.2849°
    RAAN 333.4074° 14.0962°
    Perigee Argument 85.1237° 92.8345°
    Mean Anomaly (M) 274.9897° 267.3021°
    Apogee 471.488 km 466.328 km
    Perigee 469.904 km 464.852 km
    Orbit Epoch 2026-09-13T12:16:08+0000 2026-09-13T07:37:47+0000

    STARLINK-1557 & STARLINK-4443 Collision Probability (Pc) Trend

    STARLINK-1557 & STARLINK-4443 Collision Probability (Pc) TrendNot Available

    STARLINK-1557 & STARLINK-4443 Miss Distance (Miss Distance) Trend

    STARLINK-1557 & STARLINK-4443 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1557Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4443Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1557Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4443Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1557

    No nearby objects data