Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    8.708261E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-11T18:50:12+0800
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    1 Object 1

    AOE ID 66712
    NORAD ID 66712
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name SELENE
    AOE ID 69020
    NORAD ID 69020
    Object Type PAYLOAD
    Country
    GR GR

    Conjunction Constraints

    Parameter FLOCK 4H 9 SELENE
    Time of Closest Approach 2026-10-13T04:21:56+0000
    Collision Probability (Pc) 8.708261E-6
    Conjunction Distance (km) 1.393 km
    Relative Speed (km/s) 15.093 km/s
    Conjunction Risk Parameters R (Radial): -0.81 | I (In-track): 0.15 | C (Cross-track): 1.123
    Collision Risk Index (CRI) 0.54
    X Position (km) -6690.907 -6691.696
    Position Y (km) 8.268 7.137
    Position Z (km) 1604.614 1604.804
    Velocity X (km/s) -1.767 1.769
    Velocity Y (km/s) 1.012 1.004
    Velocity Z (km/s) -7.336 7.337

    Orbital Parameters 国际轨道数据源

    Parameter FLOCK 4H 9 SELENE
    Semimajor Axis (a) 6878.718 km 6881.248 km
    Eccentricity (e) 0.000186 0.000265
    Inclination (i) 97.4121° 97.3888°
    RAAN 355.9079° 178.8163°
    Perigee Argument 305.8617° 323.3759°
    Mean Anomaly (M) 54.2447° 36.7295°
    Apogee 501.859 km 504.932 km
    Perigee 499.303 km 501.290 km
    Orbit Epoch 2026-10-10T21:58:51+0000 2026-10-10T05:15:03+0000

    FLOCK 4H 9 & SELENE Collision Probability (Pc) Trend

    FLOCK 4H 9 & SELENE Collision Probability (Pc) TrendNot Available

    FLOCK 4H 9 & SELENE Miss Distance (Miss Distance) Trend

    FLOCK 4H 9 & SELENE Miss Distance (Miss Distance) TrendNot Available

    FLOCK 4H 9Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SELENEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FLOCK 4H 9Collision Probability Trend

    Object 1 Probability TrendNot Available

    SELENECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FLOCK 4H 9

    No nearby objects data