Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.789669E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T21:28:25+0800
    View CDM
    Download CDM 1.0

    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 2026-10-20T20:51:22+0000
    Collision Probability (Pc) 1.789669E-6
    Conjunction Distance (km) 2.482 km
    Relative Speed (km/s) 14.949 km/s
    Conjunction Risk Parameters R (Radial): 2.451 | I (In-track): -0.083 | C (Cross-track): 0.382
    Collision Risk Index (CRI) 0.4
    X Position (km) -820.918 -820.771
    Position Y (km) -1027.851 -1027.123
    Position Z (km) 6732.931 6730.563
    Velocity X (km/s) 6.383 -7.454
    Velocity Y (km/s) 3.93 -1.16
    Velocity Z (km/s) 1.379 -1.085

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 33 DEB TYCHE
    Semimajor Axis (a) 6871.056 km 6866.038 km
    Eccentricity (e) 0.000588 0.000194
    Inclination (i) 86.3453° 97.3651°
    RAAN 213.0993° 8.0162°
    Perigee Argument 41.6071° 153.7448°
    Mean Anomaly (M) 318.5621° 206.3889°
    Apogee 496.961 km 489.236 km
    Perigee 488.877 km 486.566 km
    Orbit Epoch 2026-10-19T05:07:21+0000 2026-10-18T22:47:16+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