Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.417463E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T08:20:30+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 63190
    NORAD ID 63190
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ARC-1 STARLINK-11637
    Time of Closest Approach 2026-10-24T02:17:21+0000
    Collision Probability (Pc) 8.417463E-7
    Conjunction Distance (km) 2.27 km
    Relative Speed (km/s) 2.999 km/s
    Conjunction Risk Parameters R (Radial): 1.465 | I (In-track): -1.7 | C (Cross-track): -0.339
    Collision Risk Index (CRI) 0.34
    X Position (km) -5321.371 -5323.37
    Position Y (km) -3896.747 -3896.914
    Position Z (km) -1350.712 -1349.651
    Velocity X (km/s) 3.108 4.219
    Velocity Y (km/s) -1.87 -4.03
    Velocity Z (km/s) -6.778 -5.019

    Orbital Parameters 国际轨道数据源

    Parameter ARC-1 STARLINK-11637
    Semimajor Axis (a) 6716.514 km 6734.648 km
    Eccentricity (e) 0.003413 0.000281
    Inclination (i) 64.7530° 42.9978°
    RAAN 33.4861° 34.0891°
    Perigee Argument 320.6077° 287.7720°
    Mean Anomaly (M) 39.2595° 72.2841°
    Apogee 361.299 km 358.406 km
    Perigee 315.455 km 354.616 km
    Orbit Epoch 2026-10-23T07:12:51+0000 2026-10-22T08:15:47+0000

    ARC-1 & STARLINK-11637 Collision Probability (Pc) Trend

    ARC-1 & STARLINK-11637 Collision Probability (Pc) TrendNot Available

    ARC-1 & STARLINK-11637 Miss Distance (Miss Distance) Trend

    ARC-1 & STARLINK-11637 Miss Distance (Miss Distance) TrendNot Available

    ARC-1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11637Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ARC-1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11637Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ARC-1

    No nearby objects data