Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.367181E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T08:00:35+0800
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    1 Object 1

    AOE ID 19257
    NORAD ID 19257
    Object Type ROCKET BODY
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 56726
    NORAD ID 56726
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SL-8 R/B IRIDIUM 181
    Time of Closest Approach 2026-09-17T12:12:07+0000
    Collision Probability (Pc) 1.367181E-6
    Conjunction Distance (km) 2.647 km
    Relative Speed (km/s) 11.382 km/s
    Conjunction Risk Parameters R (Radial): -2.487 | I (In-track): 0.583 | C (Cross-track): -0.689
    Collision Risk Index (CRI) 0.38
    X Position (km) 2091.804 2092.222
    Position Y (km) 243.35 242.596
    Position Z (km) -6814.089 -6816.591
    Velocity X (km/s) -3.385 6.746
    Velocity Y (km/s) 6.615 2.357
    Velocity Z (km/s) -0.806 2.155

    Orbital Parameters 国际轨道数据源

    Parameter SL-8 R/B IRIDIUM 181
    Semimajor Axis (a) 7139.958 km 7125.716 km
    Eccentricity (e) 0.002116 0.000212
    Inclination (i) 74.0464° 86.4542°
    RAAN 123.2717° 18.9947°
    Perigee Argument 257.3373° 98.5713°
    Mean Anomaly (M) 262.4410° 261.5729°
    Apogee 776.928 km 749.092 km
    Perigee 746.714 km 746.066 km
    Orbit Epoch 2026-09-15T02:59:31+0000 2026-09-15T13:57:05+0000

    SL-8 R/B & IRIDIUM 181 Collision Probability (Pc) Trend

    SL-8 R/B & IRIDIUM 181 Collision Probability (Pc) TrendNot Available

    SL-8 R/B & IRIDIUM 181 Miss Distance (Miss Distance) Trend

    SL-8 R/B & IRIDIUM 181 Miss Distance (Miss Distance) TrendNot Available

    SL-8 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 181Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SL-8 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 181Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SL-8 R/B

    No nearby objects data