Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.750482E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T13:56:21+0800
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    1 Object 1

    AOE ID 41922
    NORAD ID 41922
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 48705
    NORAD ID 48705
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter IRIDIUM 104 NOAA 17 DEB
    Time of Closest Approach 2026-09-11T18:22:45+0000
    Collision Probability (Pc) 1.750482E-6
    Conjunction Distance (km) 2.509 km
    Relative Speed (km/s) 14.877 km/s
    Conjunction Risk Parameters R (Radial): 2.473 | I (In-track): 0.036 | C (Cross-track): -0.422
    Collision Risk Index (CRI) 0.4
    X Position (km) -2963.628 -2964.968
    Position Y (km) -4330.634 -4331.853
    Position Z (km) -4876.503 -4878.238
    Velocity X (km/s) 3.382 -4.086
    Velocity Y (km/s) 3.808 -3.205
    Velocity Z (km/s) -5.443 5.345

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 104 NOAA 17 DEB
    Semimajor Axis (a) 7155.805 km 7156.764 km
    Eccentricity (e) 0.000242 0.001160
    Inclination (i) 86.3935° 98.8282°
    RAAN 52.6521° 226.1756°
    Perigee Argument 95.8615° 69.2499°
    Mean Anomaly (M) 264.2857° 290.9928°
    Apogee 779.400 km 786.932 km
    Perigee 775.936 km 770.322 km
    Orbit Epoch 2026-09-10T19:34:32+0000 2026-09-10T15:47:14+0000

    IRIDIUM 104 & NOAA 17 DEB Collision Probability (Pc) Trend

    IRIDIUM 104 & NOAA 17 DEB Collision Probability (Pc) TrendNot Available

    IRIDIUM 104 & NOAA 17 DEB Miss Distance (Miss Distance) Trend

    IRIDIUM 104 & NOAA 17 DEB Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 104Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NOAA 17 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 104Collision Probability Trend

    Object 1 Probability TrendNot Available

    NOAA 17 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 104

    No nearby objects data