Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.073419E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T07:44:07+0800
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    1 Object 1

    AOE ID 46971
    NORAD ID 46971
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66678
    NORAD ID 66678
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter IRIDIUM 33 DEB OTTER SDM
    Time of Closest Approach 2026-10-20T18:15:16+0000
    Collision Probability (Pc) 2.073419E-6
    Conjunction Distance (km) 2.314 km
    Relative Speed (km/s) 15.216 km/s
    Conjunction Risk Parameters R (Radial): -1.502 | I (In-track): 0.059 | C (Cross-track): 1.759
    Collision Risk Index (CRI) 0.41
    X Position (km) 6052.285 6053.477
    Position Y (km) 120.393 122.166
    Position Z (km) 3266.906 3267.795
    Velocity X (km/s) 3.603 -3.56
    Velocity Y (km/s) 0.628 -1.187
    Velocity Z (km/s) -6.677 6.624

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 33 DEB OTTER SDM
    Semimajor Axis (a) 6879.470 km 6880.777 km
    Eccentricity (e) 0.000204 0.000406
    Inclination (i) 86.3113° 97.4099°
    RAAN 184.5037° 3.6256°
    Perigee Argument 345.6301° 289.2102°
    Mean Anomaly (M) 28.9719° 70.8694°
    Apogee 502.734 km 505.433 km
    Perigee 499.932 km 499.847 km
    Orbit Epoch 2026-10-17T23:21:58+0000 2026-10-19T04:14:12+0000

    IRIDIUM 33 DEB & OTTER SDM Collision Probability (Pc) Trend

    IRIDIUM 33 DEB & OTTER SDM Collision Probability (Pc) TrendNot Available

    IRIDIUM 33 DEB & OTTER SDM Miss Distance (Miss Distance) Trend

    IRIDIUM 33 DEB & OTTER SDM Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 33 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OTTER SDMMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 33 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    OTTER SDMCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 33 DEB

    No nearby objects data