Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.818701E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T08:56:47+0800
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    1 Object 1

    AOE ID 40996
    NORAD ID 40996
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    Name TYCHE
    AOE ID 60496
    NORAD ID 60496
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter IRIDIUM 33 DEB TYCHE
    Time of Closest Approach 2026-10-20T20:51:23+0000
    Collision Probability (Pc) 1.818701E-6
    Conjunction Distance (km) 2.46 km
    Relative Speed (km/s) 14.949 km/s
    Conjunction Risk Parameters R (Radial): -2.453 | I (In-track): 0.043 | C (Cross-track): 0.168
    Collision Risk Index (CRI) 0.4
    X Position (km) -820.484 -820.244
    Position Y (km) -1027.584 -1027.052
    Position Z (km) 6733.024 6730.634
    Velocity X (km/s) 6.383 -7.455
    Velocity Y (km/s) 3.93 -1.16
    Velocity Z (km/s) 1.378 -1.084

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 33 DEB TYCHE
    Semimajor Axis (a) 6871.056 km 6866.019 km
    Eccentricity (e) 0.000588 0.000201
    Inclination (i) 86.3453° 97.3652°
    RAAN 213.0993° 8.8560°
    Perigee Argument 41.6071° 151.9702°
    Mean Anomaly (M) 318.5621° 208.1645°
    Apogee 496.961 km 489.262 km
    Perigee 488.877 km 486.502 km
    Orbit Epoch 2026-10-19T05:07:21+0000 2026-10-19T19:14:49+0000

    IRIDIUM 33 DEB & TYCHE Collision Probability (Pc) Trend

    IRIDIUM 33 DEB & TYCHE Collision Probability (Pc) TrendNot Available

    IRIDIUM 33 DEB & TYCHE Miss Distance (Miss Distance) Trend

    IRIDIUM 33 DEB & TYCHE Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 33 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TYCHEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 33 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    TYCHECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 33 DEB

    No nearby objects data