Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.804011E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T14:08:59+0800
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    1 Object 1

    Name ARC-1
    AOE ID 40969
    NORAD ID 40969
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 62221
    NORAD ID 62221
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ARC-1 STARLINK-11468
    Time of Closest Approach 2026-09-12T23:03:15+0000
    Collision Probability (Pc) 1.804011E-6
    Conjunction Distance (km) 2.12 km
    Relative Speed (km/s) 8.849 km/s
    Conjunction Risk Parameters R (Radial): 1.136 | I (In-track): 1.469 | C (Cross-track): -1.022
    Collision Risk Index (CRI) 0.4
    X Position (km) -3376.327 -3378.243
    Position Y (km) 2739.225 2738.542
    Position Z (km) -5148.822 -5149.415
    Velocity X (km/s) -6.624 -2.82
    Velocity Y (km/s) -1.179 -6.911
    Velocity Z (km/s) 3.736 -1.828

    Orbital Parameters 国际轨道数据源

    Parameter ARC-1 STARLINK-11468
    Semimajor Axis (a) 6754.664 km 6737.764 km
    Eccentricity (e) 0.003477 0.000198
    Inclination (i) 64.7550° 53.1567°
    RAAN 182.4398° 270.8351°
    Perigee Argument 333.3070° 146.5068°
    Mean Anomaly (M) 26.6287° 213.6075°
    Apogee 400.011 km 360.960 km
    Perigee 353.043 km 358.294 km
    Orbit Epoch 2026-09-10T19:07:29+0000 2026-09-10T10:24:22+0000

    ARC-1 & STARLINK-11468 Collision Probability (Pc) Trend

    ARC-1 & STARLINK-11468 Collision Probability (Pc) TrendNot Available

    ARC-1 & STARLINK-11468 Miss Distance (Miss Distance) Trend

    ARC-1 & STARLINK-11468 Miss Distance (Miss Distance) TrendNot Available

    ARC-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11468Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ARC-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11468Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ARC-1

    No nearby objects data