Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.510906E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T11:30:14+0800
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    1 Object 1

    AOE ID 13121
    NORAD ID 13121
    Object Type ROCKET BODY
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 59164
    NORAD ID 59164
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-3 R/B STARLINK-31309
    Time of Closest Approach 2026-09-06T08:46:36+0000
    Collision Probability (Pc) 1.510906E-6
    Conjunction Distance (km) 2.006 km
    Relative Speed (km/s) 5.33 km/s
    Conjunction Risk Parameters R (Radial): -1.298 | I (In-track): 1.435 | C (Cross-track): 0.529
    Collision Risk Index (CRI) 0.39
    X Position (km) 6488.689 6486.969
    Position Y (km) 766.492 767.047
    Position Z (km) -2104.676 -2105.544
    Velocity X (km/s) -2.426 -2.171
    Velocity Y (km/s) 0.947 5.64
    Velocity Z (km/s) -7.157 -4.645

    Orbital Parameters 国际轨道数据源

    Parameter SL-3 R/B STARLINK-31309
    Semimajor Axis (a) 6853.347 km 6861.214 km
    Eccentricity (e) 0.000903 0.000098
    Inclination (i) 81.1882° 42.9954°
    RAAN 186.8598° 182.6020°
    Perigee Argument 37.1478° 294.4170°
    Mean Anomaly (M) 323.0381° 65.6579°
    Apogee 481.397 km 483.751 km
    Perigee 469.023 km 482.403 km
    Orbit Epoch 2026-09-03T20:16:41+0000 2026-09-03T12:23:51+0000

    SL-3 R/B & STARLINK-31309 Collision Probability (Pc) Trend

    SL-3 R/B & STARLINK-31309 Collision Probability (Pc) TrendNot Available

    SL-3 R/B & STARLINK-31309 Miss Distance (Miss Distance) Trend

    SL-3 R/B & STARLINK-31309 Miss Distance (Miss Distance) TrendNot Available

    SL-3 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31309Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-3 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31309Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-3 R/B

    No nearby objects data