Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.883213E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-20T20:16:08+0800
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    1 Object 1

    AOE ID 11327
    NORAD ID 11327
    Object Type ROCKET BODY
    Country
    CIS CIS
    VS

    2 Object 2

    Name RAPTOR4
    AOE ID 58956
    NORAD ID 58956
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-8 R/B RAPTOR4
    Time of Closest Approach 2026-09-21T19:02:32+0000
    Collision Probability (Pc) 7.883213E-7
    Conjunction Distance (km) 2.972 km
    Relative Speed (km/s) 5.621 km/s
    Conjunction Risk Parameters R (Radial): 1.943 | I (In-track): 2.076 | C (Cross-track): 0.866
    Collision Risk Index (CRI) 0.33
    X Position (km) -3739.89 -3742.079
    Position Y (km) 6078.808 6080.228
    Position Z (km) 1779.494 1778.072
    Velocity X (km/s) -1.734 -5.532
    Velocity Y (km/s) 1.041 -2.104
    Velocity Z (km/s) -7.079 -4.383

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 R/B RAPTOR4
    Semimajor Axis (a) 7351.839 km 7362.001 km
    Eccentricity (e) 0.002882 0.001390
    Inclination (i) 82.9488° 39.9896°
    RAAN 304.6311° 335.1773°
    Perigee Argument 72.5789° 58.0565°
    Mean Anomaly (M) 317.4957° 302.1534°
    Apogee 994.889 km 994.101 km
    Perigee 952.515 km 973.627 km
    Orbit Epoch 2026-09-20T02:17:01+0000 2026-09-18T06:33:32+0000

    SL-8 R/B & RAPTOR4 Collision Probability (Pc) Trend

    SL-8 R/B & RAPTOR4 Collision Probability (Pc) TrendNot Available

    SL-8 R/B & RAPTOR4 Miss Distance (Miss Distance) Trend

    SL-8 R/B & RAPTOR4 Miss Distance (Miss Distance) TrendNot Available

    SL-8 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    RAPTOR4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    RAPTOR4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 R/B

    No nearby objects data