Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.603919E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:07:46+0800
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    1 Object 1

    AOE ID 53469
    NORAD ID 53469
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 60562
    NORAD ID 60562
    Object Type PAYLOAD
    Country
    FI FI

    Conjunction Constraints

    Parameter STARLINK-4399 HYPERFIELD-1A
    Time of Closest Approach 2026-09-06T04:28:32+0000
    Collision Probability (Pc) 7.603919E-7
    Conjunction Distance (km) 2.889 km
    Relative Speed (km/s) 4.949 km/s
    Conjunction Risk Parameters R (Radial): 2.889 | I (In-track): 0.032 | C (Cross-track): -0.004
    Collision Risk Index (CRI) 0.33
    X Position (km) -207.155 -207.275
    Position Y (km) -899.119 -899.498
    Position Z (km) 6772.905 6775.766
    Velocity X (km/s) -7.573 -6.556
    Velocity Y (km/s) -0.9 3.896
    Velocity Z (km/s) -0.35 0.32

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4399 HYPERFIELD-1A
    Semimajor Axis (a) 6843.699 km 6848.410 km
    Eccentricity (e) 0.000113 0.000603
    Inclination (i) 97.2859° 97.3748°
    RAAN 4.7166° 326.4796°
    Perigee Argument 95.0819° 44.4425°
    Mean Anomaly (M) 265.0553° 315.7299°
    Apogee 466.337 km 474.401 km
    Perigee 464.787 km 466.145 km
    Orbit Epoch 2026-09-03T18:07:36+0000 2026-09-03T16:31:17+0000

    STARLINK-4399 & HYPERFIELD-1A Collision Probability (Pc) Trend

    STARLINK-4399 & HYPERFIELD-1A Collision Probability (Pc) TrendNot Available

    STARLINK-4399 & HYPERFIELD-1A Miss Distance (Miss Distance) Trend

    STARLINK-4399 & HYPERFIELD-1A Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4399Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HYPERFIELD-1AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4399Collision Probability Trend

    Object 1 Probability TrendNot Available

    HYPERFIELD-1ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4399

    No nearby objects data