Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.534256E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-11-02T03:43:35+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 59965
    NORAD ID 59965
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66724
    NORAD ID 66724
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter PREFIRE-1 FLOCK 4H 21
    Time of Closest Approach 2026-11-03T10:10:39+0000
    Collision Probability (Pc) 1.534256E-6
    Conjunction Distance (km) 2.377 km
    Relative Speed (km/s) 10.073 km/s
    Conjunction Risk Parameters R (Radial): 0.397 | I (In-track): 1.757 | C (Cross-track): 1.551
    Collision Risk Index (CRI) 0.39
    X Position (km) -1053.698 -1052.629
    Position Y (km) 566.969 569.054
    Position Z (km) -6780.297 -6780.692
    Velocity X (km/s) -1.589 7.092
    Velocity Y (km/s) 7.375 2.575
    Velocity Z (km/s) 0.862 -0.887

    Orbital Parameters 国际轨道数据源

    Parameter PREFIRE-1 FLOCK 4H 21
    Semimajor Axis (a) 6869.581 km 6877.240 km
    Eccentricity (e) 0.001224 0.000295
    Inclination (i) 97.5462° 97.4054°
    RAAN 100.7905° 16.8343°
    Perigee Argument 117.7321° 153.0847°
    Mean Anomaly (M) 242.5160° 207.0543°
    Apogee 499.855 km 501.129 km
    Perigee 483.033 km 497.077 km
    Orbit Epoch 2026-11-01T04:59:38+0000 2026-11-01T03:23:08+0000

    PREFIRE-1 & FLOCK 4H 21 Collision Probability (Pc) Trend

    PREFIRE-1 & FLOCK 4H 21 Collision Probability (Pc) TrendNot Available

    PREFIRE-1 & FLOCK 4H 21 Miss Distance (Miss Distance) Trend

    PREFIRE-1 & FLOCK 4H 21 Miss Distance (Miss Distance) TrendNot Available

    PREFIRE-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4H 21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    PREFIRE-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4H 21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with PREFIRE-1

    No nearby objects data