Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.157853E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T05:10:41+0800
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    1 Object 1

    AOE ID 12139
    NORAD ID 12139
    Object Type ROCKET BODY
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 64073
    NORAD ID 64073
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-8 R/B STARLINK-11729
    Time of Closest Approach 2026-09-16T11:47:52+0000
    Collision Probability (Pc) 1.157853E-6
    Conjunction Distance (km) 2.824 km
    Relative Speed (km/s) 10.034 km/s
    Conjunction Risk Parameters R (Radial): -2.711 | I (In-track): -0.597 | C (Cross-track): -0.512
    Collision Risk Index (CRI) 0.36
    X Position (km) 2417.691 2416.359
    Position Y (km) -4293.848 -4292.716
    Position Z (km) -4592.236 -4590.02
    Velocity X (km/s) -1.433 6.726
    Velocity Y (km/s) 5.211 3.732
    Velocity Z (km/s) -5.594 0.055

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 R/B STARLINK-11729
    Semimajor Axis (a) 6892.499 km 6734.654 km
    Eccentricity (e) 0.023924 0.000607
    Inclination (i) 82.9343° 43.0010°
    RAAN 114.7538° 40.3808°
    Perigee Argument 238.9266° 292.8259°
    Mean Anomaly (M) 118.8295° 67.1967°
    Apogee 679.255 km 360.606 km
    Perigee 349.469 km 352.428 km
    Orbit Epoch 2026-09-14T08:09:10+0000 2026-09-14T12:52:48+0000

    SL-8 R/B & STARLINK-11729 Collision Probability (Pc) Trend

    SL-8 R/B & STARLINK-11729 Collision Probability (Pc) TrendNot Available

    SL-8 R/B & STARLINK-11729 Miss Distance (Miss Distance) Trend

    SL-8 R/B & STARLINK-11729 Miss Distance (Miss Distance) TrendNot Available

    SL-8 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11729Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11729Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 R/B

    No nearby objects data