Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.550127E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T00:11:48+0800
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    1 Object 1

    AOE ID 53991
    NORAD ID 53991
    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-5118 ARCSTONE
    Time of Closest Approach 2026-09-10T16:23:06+0000
    Collision Probability (Pc) 1.550127E-6
    Conjunction Distance (km) 2.345 km
    Relative Speed (km/s) 9.816 km/s
    Conjunction Risk Parameters R (Radial): -1.115 | I (In-track): 1.576 | C (Cross-track): -1.33
    Collision Risk Index (CRI) 0.39
    X Position (km) 4116.855 4116.588
    Position Y (km) 1587.315 1586.156
    Position Z (km) -5231.083 -5233.103
    Velocity X (km/s) -0.557 5.881
    Velocity Y (km/s) 7.388 0.618
    Velocity Z (km/s) 1.805 4.814

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5118 ARCSTONE
    Semimajor Axis (a) 6837.877 km 6837.603 km
    Eccentricity (e) 0.000124 0.000197
    Inclination (i) 53.1617° 97.4689°
    RAAN 88.0124° 11.7321°
    Perigee Argument 83.8764° 220.5071°
    Mean Anomaly (M) 276.2381° 139.6026°
    Apogee 460.590 km 460.813 km
    Perigee 458.890 km 458.119 km
    Orbit Epoch 2026-09-09T18:49:49+0000 2026-09-10T07:13:13+0000

    STARLINK-5118 & ARCSTONE Collision Probability (Pc) Trend

    STARLINK-5118 & ARCSTONE Collision Probability (Pc) TrendNot Available

    STARLINK-5118 & ARCSTONE Miss Distance (Miss Distance) Trend

    STARLINK-5118 & ARCSTONE Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5118Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ARCSTONEMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5118Collision Probability Trend

    Object 1 Probability TrendNot Available

    ARCSTONECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5118

    No nearby objects data