Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.181662E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-26T21:49:16+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 60068
    NORAD ID 60068
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ARC-1 STARLINK-11170
    Time of Closest Approach 2026-10-28T01:49:21+0000
    Collision Probability (Pc) 1.181662E-6
    Conjunction Distance (km) 2.87 km
    Relative Speed (km/s) 10.799 km/s
    Conjunction Risk Parameters R (Radial): -2.85 | I (In-track): -0.234 | C (Cross-track): 0.238
    Collision Risk Index (CRI) 0.36
    X Position (km) -4849.565 -4851.715
    Position Y (km) 820.944 820.975
    Position Z (km) 4591.407 4593.308
    Velocity X (km/s) -4.956 1.912
    Velocity Y (km/s) -3.709 -6.728
    Velocity Z (km/s) -4.554 3.213

    Orbital Parameters 国际轨道数据源

    Parameter ARC-1 STARLINK-11170
    Semimajor Axis (a) 6712.724 km 6737.879 km
    Eccentricity (e) 0.003435 0.000115
    Inclination (i) 64.7525° 53.1595°
    RAAN 23.1372° 136.3914°
    Perigee Argument 320.9652° 50.8118°
    Mean Anomaly (M) 38.9024° 309.3001°
    Apogee 357.643 km 360.514 km
    Perigee 311.531 km 358.970 km
    Orbit Epoch 2026-10-26T05:11:07+0000 2026-10-25T23:08:54+0000

    ARC-1 & STARLINK-11170 Collision Probability (Pc) Trend

    ARC-1 & STARLINK-11170 Collision Probability (Pc) TrendNot Available

    ARC-1 & STARLINK-11170 Miss Distance (Miss Distance) Trend

    ARC-1 & STARLINK-11170 Miss Distance (Miss Distance) TrendNot Available

    ARC-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11170Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ARC-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11170Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ARC-1

    No nearby objects data