Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.244599E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T06:57:26+0800
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    1 Object 1

    AOE ID 39088
    NORAD ID 39088
    Object Type PAYLOAD
    Country
    CA CA
    VS

    2 Object 2

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

    Conjunction Constraints

    Parameter SAPPHIRE IRIDIUM 120
    Time of Closest Approach 2026-09-17T01:32:56+0000
    Collision Probability (Pc) 4.244599E-6
    Conjunction Distance (km) 1.728 km
    Relative Speed (km/s) 14.534 km/s
    Conjunction Risk Parameters R (Radial): 1.427 | I (In-track): -0.23 | C (Cross-track): -0.947
    Collision Risk Index (CRI) 0.48
    X Position (km) 769.175 768.052
    Position Y (km) -1306.457 -1306.198
    Position Z (km) 6985.979 6984.691
    Velocity X (km/s) -1.776 -1.62
    Velocity Y (km/s) -7.16 7.131
    Velocity Z (km/s) -1.134 1.509

    Orbital Parameters 国际轨道数据源

    Parameter SAPPHIRE IRIDIUM 120
    Semimajor Axis (a) 7152.340 km 7155.805 km
    Eccentricity (e) 0.001086 0.000204
    Inclination (i) 98.4314° 86.3912°
    RAAN 75.9235° 284.1925°
    Perigee Argument 346.0117° 90.6438°
    Mean Anomaly (M) 14.0766° 269.4991°
    Apogee 781.972 km 779.125 km
    Perigee 766.434 km 776.211 km
    Orbit Epoch 2026-09-15T13:57:16+0000 2026-09-15T12:20:51+0000

    SAPPHIRE & IRIDIUM 120 Collision Probability (Pc) Trend

    SAPPHIRE & IRIDIUM 120 Collision Probability (Pc) TrendNot Available

    SAPPHIRE & IRIDIUM 120 Miss Distance (Miss Distance) Trend

    SAPPHIRE & IRIDIUM 120 Miss Distance (Miss Distance) TrendNot Available

    SAPPHIREMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 120Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SAPPHIRECollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 120Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SAPPHIRE

    No nearby objects data