Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.920285E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:00:20+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52472
    NORAD ID 52472
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69447
    NORAD ID 69447
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3881 STARLINK-37640
    Time of Closest Approach 2026-09-05T07:43:27+0000
    Collision Probability (Pc) 9.920285E-7
    Conjunction Distance (km) 2.961 km
    Relative Speed (km/s) 8.474 km/s
    Conjunction Risk Parameters R (Radial): -2.84 | I (In-track): -0.695 | C (Cross-track): 0.458
    Collision Risk Index (CRI) 0.35
    X Position (km) 4838.912 4837.062
    Position Y (km) 930.168 928.965
    Position Z (km) 4739.304 4737.331
    Velocity X (km/s) -4.088 1.689
    Velocity Y (km/s) 5.686 6.798
    Velocity Z (km/s) 3.05 -3.049

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3881 STARLINK-37640
    Semimajor Axis (a) 6843.387 km 6840.816 km
    Eccentricity (e) 0.000124 0.000142
    Inclination (i) 53.1616° 53.1576°
    RAAN 332.4001° 245.9552°
    Perigee Argument 75.8565° 81.9891°
    Mean Anomaly (M) 284.2575° 278.1273°
    Apogee 466.099 km 463.653 km
    Perigee 464.401 km 461.705 km
    Orbit Epoch 2026-09-03T16:21:39+0000 2026-09-03T09:52:17+0000

    STARLINK-3881 & STARLINK-37640 Collision Probability (Pc) Trend

    STARLINK-3881 & STARLINK-37640 Collision Probability (Pc) TrendNot Available

    STARLINK-3881 & STARLINK-37640 Miss Distance (Miss Distance) Trend

    STARLINK-3881 & STARLINK-37640 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3881Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37640Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3881Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37640Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3881

    No nearby objects data