Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.098838E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-11-03T17:45:45+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 66723
    NORAD ID 66723
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 67474
    NORAD ID 67474
    Object Type PAYLOAD
    Country
    DZ DZ

    Conjunction Constraints

    Parameter FLOCK 4H 20 ALSAT 3A
    Time of Closest Approach 2026-11-04T06:00:26+0000
    Collision Probability (Pc) 2.098838E-6
    Conjunction Distance (km) 1.09 km
    Relative Speed (km/s) 0.116 km/s
    Conjunction Risk Parameters R (Radial): -0.986 | I (In-track): 0.457 | C (Cross-track): 0.068
    Collision Risk Index (CRI) 0.41
    X Position (km) 551.395 550.911
    Position Y (km) -740.696 -740.812
    Position Z (km) 6804.712 6803.743
    Velocity X (km/s) -7.131 -7.089
    Velocity Y (km/s) -2.662 -2.77
    Velocity Z (km/s) 0.285 0.278

    Orbital Parameters 国际轨道数据源

    Parameter FLOCK 4H 20 ALSAT 3A
    Semimajor Axis (a) 6875.812 km 6873.401 km
    Eccentricity (e) 0.000324 0.000761
    Inclination (i) 97.4092° 97.4419°
    RAAN 18.7528° 19.6197°
    Perigee Argument 149.5447° 1.0112°
    Mean Anomaly (M) 210.5979° 359.1139°
    Apogee 499.906 km 500.497 km
    Perigee 495.444 km 490.031 km
    Orbit Epoch 2026-11-02T18:55:34+0000 2026-11-02T18:56:40+0000

    FLOCK 4H 20 & ALSAT 3A Collision Probability (Pc) Trend

    FLOCK 4H 20 & ALSAT 3A Collision Probability (Pc) TrendNot Available

    FLOCK 4H 20 & ALSAT 3A Miss Distance (Miss Distance) Trend

    FLOCK 4H 20 & ALSAT 3A Miss Distance (Miss Distance) TrendNot Available

    FLOCK 4H 20Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ALSAT 3AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FLOCK 4H 20Collision Probability Trend

    Object 1 Probability TrendNot Available

    ALSAT 3ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FLOCK 4H 20

    No nearby objects data