Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.534135E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T15:07:45+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52129
    NORAD ID 52129
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 52707
    NORAD ID 52707
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3661 STARLINK-4007
    Time of Closest Approach 2026-09-13T08:13:26+0000
    Collision Probability (Pc) 8.534135E-7
    Conjunction Distance (km) 2.965 km
    Relative Speed (km/s) 6.476 km/s
    Conjunction Risk Parameters R (Radial): -0.924 | I (In-track): -2.545 | C (Cross-track): -1.207
    Collision Risk Index (CRI) 0.34
    X Position (km) -1790.565 -1788.212
    Position Y (km) -4213.623 -4215.288
    Position Z (km) -5174.54 -5175.231
    Velocity X (km/s) 5.378 7.265
    Velocity Y (km/s) -4.91 -0.442
    Velocity Z (km/s) 2.139 -2.151

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3661 STARLINK-4007
    Semimajor Axis (a) 6903.595 km 6904.617 km
    Eccentricity (e) 0.000161 0.000137
    Inclination (i) 53.1607° 53.2170°
    RAAN 317.9998° 21.4279°
    Perigee Argument 74.0538° 59.3043°
    Mean Anomaly (M) 286.0633° 300.8085°
    Apogee 526.571 km 527.424 km
    Perigee 524.345 km 525.536 km
    Orbit Epoch 2026-09-10T10:47:54+0000 2026-09-10T15:43:15+0000

    STARLINK-3661 & STARLINK-4007 Collision Probability (Pc) Trend

    STARLINK-3661 & STARLINK-4007 Collision Probability (Pc) TrendNot Available

    STARLINK-3661 & STARLINK-4007 Miss Distance (Miss Distance) Trend

    STARLINK-3661 & STARLINK-4007 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3661Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4007Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3661Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4007Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3661

    No nearby objects data