Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.882326E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T17:15:31+0800
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    1 Object 1

    AOE ID 66713
    NORAD ID 66713
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name BRO-21
    AOE ID 69007
    NORAD ID 69007
    Object Type PAYLOAD
    Country
    FR FR

    Conjunction Constraints

    Parameter FLOCK 4H 10 BRO-21
    Time of Closest Approach 2026-09-13T01:55:39+0000
    Collision Probability (Pc) 1.882326E-6
    Conjunction Distance (km) 2.423 km
    Relative Speed (km/s) 15.081 km/s
    Conjunction Risk Parameters R (Radial): 2.357 | I (In-track): 0.064 | C (Cross-track): -0.556
    Collision Risk Index (CRI) 0.4
    X Position (km) 5739.92 5738.231
    Position Y (km) -3272.058 -3270.45
    Position Z (km) -1940.154 -1939.501
    Velocity X (km/s) 1.33 -2.34
    Velocity Y (km/s) -1.935 0.16
    Velocity Z (km/s) 7.237 -7.239

    Orbital Parameters 国际轨道数据源

    Parameter FLOCK 4H 10 BRO-21
    Semimajor Axis (a) 6881.607 km 6878.327 km
    Eccentricity (e) 0.000579 0.000947
    Inclination (i) 97.4129° 97.3922°
    RAAN 327.2203° 151.1124°
    Perigee Argument 69.5992° 107.7157°
    Mean Anomaly (M) 290.5864° 252.5114°
    Apogee 507.454 km 506.706 km
    Perigee 499.486 km 493.674 km
    Orbit Epoch 2026-09-12T03:53:32+0000 2026-09-11T15:55:48+0000

    FLOCK 4H 10 & BRO-21 Collision Probability (Pc) Trend

    FLOCK 4H 10 & BRO-21 Collision Probability (Pc) TrendNot Available

    FLOCK 4H 10 & BRO-21 Miss Distance (Miss Distance) Trend

    FLOCK 4H 10 & BRO-21 Miss Distance (Miss Distance) TrendNot Available

    FLOCK 4H 10Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    BRO-21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FLOCK 4H 10Collision Probability Trend

    Object 1 Probability TrendNot Available

    BRO-21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FLOCK 4H 10

    No nearby objects data