Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.019895E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T06:08:30+0800
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    1 Object 1

    AOE ID 25655
    NORAD ID 25655
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 59536
    NORAD ID 59536
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-3 DEB STARLINK-31721
    Time of Closest Approach 2026-09-12T12:27:10+0000
    Collision Probability (Pc) 2.019895E-5
    Conjunction Distance (km) 1.066 km
    Relative Speed (km/s) 13.306 km/s
    Conjunction Risk Parameters R (Radial): -0.5 | I (In-track): -0.454 | C (Cross-track): 0.824
    Collision Risk Index (CRI) 0.61
    X Position (km) -2305.379 -2305.724
    Position Y (km) -4901.663 -4900.667
    Position Z (km) -4216.125 -4216.28
    Velocity X (km/s) -3.113 7.138
    Velocity Y (km/s) -3.647 -1.419
    Velocity Z (km/s) 5.93 -2.255

    Orbital Parameters 国际轨道数据源

    Parameter SL-3 DEB STARLINK-31721
    Semimajor Axis (a) 6875.042 km 6861.181 km
    Eccentricity (e) 0.002882 0.000110
    Inclination (i) 97.5252° 43.0024°
    RAAN 237.8592° 13.2050°
    Perigee Argument 296.4130° 265.7570°
    Mean Anomaly (M) 63.4149° 94.3156°
    Apogee 516.718 km 483.799 km
    Perigee 477.092 km 482.289 km
    Orbit Epoch 2026-09-11T11:23:24+0000 2026-09-11T14:59:17+0000

    SL-3 DEB & STARLINK-31721 Collision Probability (Pc) Trend

    SL-3 DEB & STARLINK-31721 Collision Probability (Pc) TrendNot Available

    SL-3 DEB & STARLINK-31721 Miss Distance (Miss Distance) Trend

    SL-3 DEB & STARLINK-31721 Miss Distance (Miss Distance) TrendNot Available

    SL-3 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31721Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-3 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31721Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-3 DEB

    No nearby objects data