Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.550357E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T02:30:23+0800
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    1 Object 1

    AOE ID 53161
    NORAD ID 53161
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64540
    NORAD ID 64540
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4055 ARCSTONE
    Time of Closest Approach 2026-09-14T01:52:38+0000
    Collision Probability (Pc) 9.550357E-7
    Conjunction Distance (km) 2.618 km
    Relative Speed (km/s) 5.9 km/s
    Conjunction Risk Parameters R (Radial): -2.266 | I (In-track): -1.207 | C (Cross-track): 0.507
    Collision Risk Index (CRI) 0.35
    X Position (km) 6387.02 6389.29
    Position Y (km) 1975.382 1976.442
    Position Z (km) -1448.467 -1447.712
    Velocity X (km/s) -0.169 1.823
    Velocity Y (km/s) 4.849 -0.498
    Velocity Z (km/s) 5.895 7.394

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4055 ARCSTONE
    Semimajor Axis (a) 6837.867 km 6837.516 km
    Eccentricity (e) 0.000122 0.000202
    Inclination (i) 53.1612° 97.4693°
    RAAN 42.3720° 12.7230°
    Perigee Argument 97.7706° 216.1900°
    Mean Anomaly (M) 262.3436° 143.9207°
    Apogee 460.567 km 460.763 km
    Perigee 458.893 km 457.995 km
    Orbit Epoch 2026-09-10T16:42:29+0000 2026-09-11T06:40:50+0000

    STARLINK-4055 & ARCSTONE Collision Probability (Pc) Trend

    STARLINK-4055 & ARCSTONE Collision Probability (Pc) TrendNot Available

    STARLINK-4055 & ARCSTONE Miss Distance (Miss Distance) Trend

    STARLINK-4055 & ARCSTONE Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4055Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ARCSTONEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4055Collision Probability Trend

    Object 1 Probability TrendNot Available

    ARCSTONECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4055

    No nearby objects data