Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.514232E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T12:59:34+0800
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    1 Object 1

    AOE ID 42271
    NORAD ID 42271
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 56475
    NORAD ID 56475
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DMSP 5D-2 F13 DEB STARLINK-5541
    Time of Closest Approach 2026-09-13T09:03:48+0000
    Collision Probability (Pc) 8.514232E-7
    Conjunction Distance (km) 2.581 km
    Relative Speed (km/s) 4.607 km/s
    Conjunction Risk Parameters R (Radial): -2.568 | I (In-track): -0.245 | C (Cross-track): -0.078
    Collision Risk Index (CRI) 0.34
    X Position (km) 5658.942 5661.182
    Position Y (km) -367.221 -367.334
    Position Z (km) -4021.53 -4022.807
    Velocity X (km/s) 4.202 4.171
    Velocity Y (km/s) -1.675 2.909
    Velocity Z (km/s) 6.068 5.606

    Orbital Parameters 国际轨道数据源

    Parameter DMSP 5D-2 F13 DEB STARLINK-5541
    Semimajor Axis (a) 6945.383 km 6950.188 km
    Eccentricity (e) 0.000296 0.000320
    Inclination (i) 98.6770° 70.0014°
    RAAN 347.9966° 15.2736°
    Perigee Argument 211.7975° 268.6172°
    Mean Anomaly (M) 148.3067° 91.4621°
    Apogee 569.305 km 574.276 km
    Perigee 565.187 km 569.826 km
    Orbit Epoch 2026-09-11T12:23:43+0000 2026-09-11T18:46:44+0000

    DMSP 5D-2 F13 DEB & STARLINK-5541 Collision Probability (Pc) Trend

    DMSP 5D-2 F13 DEB & STARLINK-5541 Collision Probability (Pc) TrendNot Available

    DMSP 5D-2 F13 DEB & STARLINK-5541 Miss Distance (Miss Distance) Trend

    DMSP 5D-2 F13 DEB & STARLINK-5541 Miss Distance (Miss Distance) TrendNot Available

    DMSP 5D-2 F13 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5541Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DMSP 5D-2 F13 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5541Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DMSP 5D-2 F13 DEB

    No nearby objects data