Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.359162E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T11:30:12+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 49447
    NORAD ID 49447
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-3 R/B STARLINK-3115
    Time of Closest Approach 2026-09-05T21:09:37+0000
    Collision Probability (Pc) 1.359162E-6
    Conjunction Distance (km) 2.371 km
    Relative Speed (km/s) 8.141 km/s
    Conjunction Risk Parameters R (Radial): -1.729 | I (In-track): -1.369 | C (Cross-track): 0.868
    Collision Risk Index (CRI) 0.38
    X Position (km) -4018.64 -4018.794
    Position Y (km) -1155.276 -1154.09
    Position Z (km) 5416.534 5414.488
    Velocity X (km/s) 6.155 3.184
    Velocity Y (km/s) -0.222 -6.881
    Velocity Z (km/s) 4.512 0.894

    Orbital Parameters 国际轨道数据源

    Parameter SL-3 R/B STARLINK-3115
    Semimajor Axis (a) 6853.347 km 6848.876 km
    Eccentricity (e) 0.000903 0.000134
    Inclination (i) 81.1882° 53.1598°
    RAAN 186.8598° 132.7220°
    Perigee Argument 37.1478° 98.9563°
    Mean Anomaly (M) 323.0381° 261.1591°
    Apogee 481.397 km 471.661 km
    Perigee 469.023 km 469.817 km
    Orbit Epoch 2026-09-03T20:16:41+0000 2026-09-03T03:02:01+0000

    SL-3 R/B & STARLINK-3115 Collision Probability (Pc) Trend

    SL-3 R/B & STARLINK-3115 Collision Probability (Pc) TrendNot Available

    SL-3 R/B & STARLINK-3115 Miss Distance (Miss Distance) Trend

    SL-3 R/B & STARLINK-3115 Miss Distance (Miss Distance) TrendNot Available

    SL-3 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3115Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-3 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3115Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-3 R/B

    No nearby objects data