Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.905485E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T21:39:47+0800
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    1 Object 1

    AOE ID 3750
    NORAD ID 3750
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55747
    NORAD ID 55747
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SCOUT X-4 DEB STARLINK-5539
    Time of Closest Approach 2026-10-27T16:49:47+0000
    Collision Probability (Pc) 4.905485E-6
    Conjunction Distance (km) 1.652 km
    Relative Speed (km/s) 14.708 km/s
    Conjunction Risk Parameters R (Radial): -0.379 | I (In-track): -0.443 | C (Cross-track): 1.546
    Collision Risk Index (CRI) 0.49
    X Position (km) -6553.858 -6553.977
    Position Y (km) -2065.611 -2063.969
    Position Z (km) -62.826 -62.95
    Velocity X (km/s) 0.36 0.839
    Velocity Y (km/s) -1.48 -2.466
    Velocity Z (km/s) 7.507 -7.16

    Orbital Parameters 国际轨道数据源

    Parameter SCOUT X-4 DEB STARLINK-5539
    Semimajor Axis (a) 6945.547 km 6869.577 km
    Eccentricity (e) 0.012255 0.000278
    Inclination (i) 78.5521° 70.0014°
    RAAN 198.3818° 18.4734°
    Perigee Argument 334.8485° 257.6263°
    Mean Anomaly (M) 24.6784° 326.8451°
    Apogee 652.530 km 493.354 km
    Perigee 482.290 km 489.526 km
    Orbit Epoch 2026-10-27T04:01:26+0000 2026-10-27T06:00:04+0000

    SCOUT X-4 DEB & STARLINK-5539 Collision Probability (Pc) Trend

    SCOUT X-4 DEB & STARLINK-5539 Collision Probability (Pc) TrendNot Available

    SCOUT X-4 DEB & STARLINK-5539 Miss Distance (Miss Distance) Trend

    SCOUT X-4 DEB & STARLINK-5539 Miss Distance (Miss Distance) TrendNot Available

    SCOUT X-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5539Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SCOUT X-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5539Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SCOUT X-4 DEB

    No nearby objects data