Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.308046E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-23T17:57:59+0800
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    1 Object 1

    AOE ID 66721
    NORAD ID 66721
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name SNAPPY
    AOE ID 69014
    NORAD ID 69014
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FLOCK 4H 18 SNAPPY
    Time of Closest Approach 2026-09-24T00:25:59+0000
    Collision Probability (Pc) 5.308046E-6
    Conjunction Distance (km) 1.619 km
    Relative Speed (km/s) 15.078 km/s
    Conjunction Risk Parameters R (Radial): 0.971 | I (In-track): -0.169 | C (Cross-track): -1.284
    Collision Risk Index (CRI) 0.49
    X Position (km) 6239.533 6240.836
    Position Y (km) -2146.652 -2145.731
    Position Z (km) -1966.895 -1967.168
    Velocity X (km/s) 1.695 -2.358
    Velocity Y (km/s) -1.666 -0.269
    Velocity Z (km/s) 7.229 -7.227

    Orbital Parameters 国际轨道数据源

    Parameter FLOCK 4H 18 SNAPPY
    Semimajor Axis (a) 6881.497 km 6878.546 km
    Eccentricity (e) 0.000503 0.000776
    Inclination (i) 97.4103° 97.3926°
    RAAN 337.3061° 161.9166°
    Perigee Argument 61.2831° 78.8305°
    Mean Anomaly (M) 298.8909° 281.3803°
    Apogee 506.822 km 505.745 km
    Perigee 499.898 km 495.073 km
    Orbit Epoch 2026-09-22T12:11:14+0000 2026-09-22T16:00:39+0000

    FLOCK 4H 18 & SNAPPY Collision Probability (Pc) Trend

    FLOCK 4H 18 & SNAPPY Collision Probability (Pc) TrendNot Available

    FLOCK 4H 18 & SNAPPY Miss Distance (Miss Distance) Trend

    FLOCK 4H 18 & SNAPPY Miss Distance (Miss Distance) TrendNot Available

    FLOCK 4H 18Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SNAPPYMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FLOCK 4H 18Collision Probability Trend

    Object 1 Probability TrendNot Available

    SNAPPYCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FLOCK 4H 18

    No nearby objects data