Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.268197E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:08:37+0800
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    1 Object 1

    AOE ID 13149
    NORAD ID 13149
    Object Type ROCKET BODY
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 42805
    NORAD ID 42805
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-8 R/B IRIDIUM 120
    Time of Closest Approach 2026-09-17T21:36:47+0000
    Collision Probability (Pc) 1.268197E-6
    Conjunction Distance (km) 2.849 km
    Relative Speed (km/s) 12.016 km/s
    Conjunction Risk Parameters R (Radial): -2.517 | I (In-track): -0.796 | C (Cross-track): -1.068
    Collision Risk Index (CRI) 0.37
    X Position (km) 921.086 919.87
    Position Y (km) -2047.257 -2047.512
    Position Z (km) 6788.508 6785.945
    Velocity X (km/s) 7.361 -1.481
    Velocity Y (km/s) -0.432 6.95
    Velocity Z (km/s) -1.129 2.293

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 R/B IRIDIUM 120
    Semimajor Axis (a) 7147.378 km 7155.805 km
    Eccentricity (e) 0.001415 0.000204
    Inclination (i) 74.0423° 86.3912°
    RAAN 178.5175° 284.1925°
    Perigee Argument 273.9877° 90.6438°
    Mean Anomaly (M) 85.9659° 269.4991°
    Apogee 779.353 km 779.125 km
    Perigee 759.129 km 776.211 km
    Orbit Epoch 2026-09-15T12:20:08+0000 2026-09-15T12:20:51+0000

    SL-8 R/B & IRIDIUM 120 Collision Probability (Pc) Trend

    SL-8 R/B & IRIDIUM 120 Collision Probability (Pc) TrendNot Available

    SL-8 R/B & IRIDIUM 120 Miss Distance (Miss Distance) Trend

    SL-8 R/B & IRIDIUM 120 Miss Distance (Miss Distance) TrendNot Available

    SL-8 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 120Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 120Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 R/B

    No nearby objects data