Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.709323E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T17:32:10+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 45693
    NORAD ID 45693
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66723
    NORAD ID 66723
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1417 FLOCK 4H 20
    Time of Closest Approach 2026-09-11T18:31:22+0000
    Collision Probability (Pc) 2.709323E-6
    Conjunction Distance (km) 1.741 km
    Relative Speed (km/s) 7.532 km/s
    Conjunction Risk Parameters R (Radial): 1.45 | I (In-track): 0.835 | C (Cross-track): 0.483
    Collision Risk Index (CRI) 0.44
    X Position (km) -4239.797 -4239.132
    Position Y (km) 3362.234 3362.139
    Position Z (km) -4261.429 -4259.823
    Velocity X (km/s) -1.245 4.409
    Velocity Y (km/s) -6.439 -1.903
    Velocity Z (km/s) -3.847 -5.894

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1417 FLOCK 4H 20
    Semimajor Axis (a) 6881.127 km 6877.698 km
    Eccentricity (e) 0.000397 0.000304
    Inclination (i) 53.0477° 97.4156°
    RAAN 291.4565° 326.4554°
    Perigee Argument 71.5747° 36.5108°
    Mean Anomaly (M) 288.5679° 323.6335°
    Apogee 505.723 km 501.649 km
    Perigee 500.257 km 497.473 km
    Orbit Epoch 2026-09-10T09:58:19+0000 2026-09-10T17:53:56+0000

    STARLINK-1417 & FLOCK 4H 20 Collision Probability (Pc) Trend

    STARLINK-1417 & FLOCK 4H 20 Collision Probability (Pc) TrendNot Available

    STARLINK-1417 & FLOCK 4H 20 Miss Distance (Miss Distance) Trend

    STARLINK-1417 & FLOCK 4H 20 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1417Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4H 20Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1417Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4H 20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1417

    No nearby objects data