Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.93803E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-26T18:08:20+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 60728
    NORAD ID 60728
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ARC-1 STARLINK-11249
    Time of Closest Approach 2026-10-26T23:56:05+0000
    Collision Probability (Pc) 6.93803E-7
    Conjunction Distance (km) 2.927 km
    Relative Speed (km/s) 4.282 km/s
    Conjunction Risk Parameters R (Radial): -2.332 | I (In-track): -1.7 | C (Cross-track): 0.486
    Collision Risk Index (CRI) 0.32
    X Position (km) -3988.031 -3990.514
    Position Y (km) 1181.481 1180.619
    Position Z (km) 5287.665 5288.951
    Velocity X (km/s) -5.707 -3.529
    Velocity Y (km/s) -3.841 -6.743
    Velocity Z (km/s) -3.426 -1.154

    Orbital Parameters 国际轨道数据源

    Parameter ARC-1 STARLINK-11249
    Semimajor Axis (a) 6713.022 km 6737.861 km
    Eccentricity (e) 0.003436 0.000159
    Inclination (i) 64.7526° 53.1603°
    RAAN 24.0373° 62.5334°
    Perigee Argument 321.0042° 75.7119°
    Mean Anomaly (M) 38.8635° 284.4075°
    Apogee 357.951 km 360.797 km
    Perigee 311.819 km 358.651 km
    Orbit Epoch 2026-10-25T23:06:11+0000 2026-10-25T15:25:06+0000

    ARC-1 & STARLINK-11249 Collision Probability (Pc) Trend

    ARC-1 & STARLINK-11249 Collision Probability (Pc) TrendNot Available

    ARC-1 & STARLINK-11249 Miss Distance (Miss Distance) Trend

    ARC-1 & STARLINK-11249 Miss Distance (Miss Distance) TrendNot Available

    ARC-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11249Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ARC-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11249Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ARC-1

    No nearby objects data