Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.094498E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-25T08:12:15+0800
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    1 Object 1

    AOE ID 66707
    NORAD ID 66707
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name HJS-9B
    AOE ID 68832
    NORAD ID 68832
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FLOCK 4H 4 HJS-9B
    Time of Closest Approach 2026-09-25T21:48:35+0000
    Collision Probability (Pc) 1.094498E-6
    Conjunction Distance (km) 2.573 km
    Relative Speed (km/s) 7.166 km/s
    Conjunction Risk Parameters R (Radial): -2.212 | I (In-track): 1.158 | C (Cross-track): 0.621
    Collision Risk Index (CRI) 0.36
    X Position (km) -4913.72 -4911.626
    Position Y (km) 2294.909 2293.465
    Position Z (km) -4252.051 -4251.664
    Velocity X (km/s) 4.716 0.568
    Velocity Y (km/s) -0.828 -6.383
    Velocity Z (km/s) -5.901 -4.094

    Orbital Parameters 国际轨道数据源

    Parameter FLOCK 4H 4 HJS-9B
    Semimajor Axis (a) 6881.534 km 6886.576 km
    Eccentricity (e) 0.000504 0.000702
    Inclination (i) 97.4150° 55.0030°
    RAAN 338.9093° 308.7181°
    Perigee Argument 35.8060° 292.8672°
    Mean Anomaly (M) 324.3513° 67.1607°
    Apogee 506.869 km 513.271 km
    Perigee 499.925 km 503.607 km
    Orbit Epoch 2026-09-23T23:03:31+0000 2026-09-24T06:54:25+0000

    FLOCK 4H 4 & HJS-9B Collision Probability (Pc) Trend

    FLOCK 4H 4 & HJS-9B Collision Probability (Pc) TrendNot Available

    FLOCK 4H 4 & HJS-9B Miss Distance (Miss Distance) Trend

    FLOCK 4H 4 & HJS-9B Miss Distance (Miss Distance) TrendNot Available

    FLOCK 4H 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HJS-9BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FLOCK 4H 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    HJS-9BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FLOCK 4H 4

    No nearby objects data