Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.643453E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T10:55:32+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 66736
    NORAD ID 66736
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter IRIDIUM 33 DEB FLOCK 4H 33
    Time of Closest Approach 2026-10-21T06:48:59+0000
    Collision Probability (Pc) 4.643453E-6
    Conjunction Distance (km) 1.694 km
    Relative Speed (km/s) 15.214 km/s
    Conjunction Risk Parameters R (Radial): 1.69 | I (In-track): 0.016 | C (Cross-track): 0.124
    Collision Risk Index (CRI) 0.48
    X Position (km) 5060.052 5058.806
    Position Y (km) -46.392 -46.256
    Position Z (km) 4655.831 4654.692
    Velocity X (km/s) 5.148 -5.096
    Velocity Y (km/s) 0.618 -1.288
    Velocity Z (km/s) -5.575 5.51

    Orbital Parameters 国际轨道数据源

    Parameter IRIDIUM 33 DEB FLOCK 4H 33
    Semimajor Axis (a) 6879.470 km 6877.329 km
    Eccentricity (e) 0.000204 0.000188
    Inclination (i) 86.3113° 97.4109°
    RAAN 184.5037° 4.3381°
    Perigee Argument 345.6301° 176.4592°
    Mean Anomaly (M) 28.9719° 183.6658°
    Apogee 502.734 km 500.483 km
    Perigee 499.932 km 497.901 km
    Orbit Epoch 2026-10-17T23:21:58+0000 2026-10-19T05:43:14+0000

    IRIDIUM 33 DEB & FLOCK 4H 33 Collision Probability (Pc) Trend

    IRIDIUM 33 DEB & FLOCK 4H 33 Collision Probability (Pc) TrendNot Available

    IRIDIUM 33 DEB & FLOCK 4H 33 Miss Distance (Miss Distance) Trend

    IRIDIUM 33 DEB & FLOCK 4H 33 Miss Distance (Miss Distance) TrendNot Available

    IRIDIUM 33 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4H 33Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    IRIDIUM 33 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4H 33Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with IRIDIUM 33 DEB

    No nearby objects data