Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.379815E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T21:21:22+0800
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    1 Object 1

    AOE ID 66724
    NORAD ID 66724
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69013
    NORAD ID 69013
    Object Type PAYLOAD
    Country
    KR KR

    Conjunction Constraints

    Parameter FLOCK 4H 21 CAS500-2
    Time of Closest Approach 2026-10-28T03:05:33+0000
    Collision Probability (Pc) 2.379815E-6
    Conjunction Distance (km) 2.168 km
    Relative Speed (km/s) 15.086 km/s
    Conjunction Risk Parameters R (Radial): -2.061 | I (In-track): 0.077 | C (Cross-track): -0.663
    Collision Risk Index (CRI) 0.43
    X Position (km) 6503.332 6505.109
    Position Y (km) 1687.399 1688.55
    Position Z (km) -1498.418 -1498.878
    Velocity X (km/s) 1.835 -1.337
    Velocity Y (km/s) -0.561 -1.38
    Velocity Z (km/s) 7.363 -7.363

    Orbital Parameters 国际轨道数据源

    Parameter FLOCK 4H 21 CAS500-2
    Semimajor Axis (a) 6877.390 km 6882.001 km
    Eccentricity (e) 0.000263 0.000744
    Inclination (i) 97.4064° 97.3724°
    RAAN 11.9142° 194.8199°
    Perigee Argument 165.6811° 279.3065°
    Mean Anomaly (M) 194.4500° 80.7329°
    Apogee 501.064 km 508.985 km
    Perigee 497.442 km 498.743 km
    Orbit Epoch 2026-10-27T03:28:58+0000 2026-10-26T17:04:58+0000

    FLOCK 4H 21 & CAS500-2 Collision Probability (Pc) Trend

    FLOCK 4H 21 & CAS500-2 Collision Probability (Pc) TrendNot Available

    FLOCK 4H 21 & CAS500-2 Miss Distance (Miss Distance) Trend

    FLOCK 4H 21 & CAS500-2 Miss Distance (Miss Distance) TrendNot Available

    FLOCK 4H 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CAS500-2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FLOCK 4H 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    CAS500-2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FLOCK 4H 21

    No nearby objects data