Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.753357E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T14:33:27+0800
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    1 Object 1

    AOE ID 52763
    NORAD ID 52763
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66120
    NORAD ID 66120
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SHERPA-AC1 STARLINK-35553
    Time of Closest Approach 2026-10-18T12:50:14+0000
    Collision Probability (Pc) 8.753357E-7
    Conjunction Distance (km) 2.77 km
    Relative Speed (km/s) 5.825 km/s
    Conjunction Risk Parameters R (Radial): 1.714 | I (In-track): -2.014 | C (Cross-track): -0.825
    Collision Risk Index (CRI) 0.34
    X Position (km) -558.041 -558.746
    Position Y (km) -6770.927 -6772.82
    Position Z (km) -790.783 -788.888
    Velocity X (km/s) -0.952 4.65
    Velocity Y (km/s) 0.947 0.313
    Velocity Z (km/s) -7.513 -6.049

    Orbital Parameters 国际轨道数据源

    Parameter SHERPA-AC1 STARLINK-35553
    Semimajor Axis (a) 6830.784 km 6840.802 km
    Eccentricity (e) 0.000776 0.000312
    Inclination (i) 97.6852° 53.1515°
    RAAN 84.9963° 85.3231°
    Perigee Argument 26.6511° 119.0235°
    Mean Anomaly (M) 333.5130° 241.1080°
    Apogee 457.946 km 464.797 km
    Perigee 447.348 km 460.533 km
    Orbit Epoch 2026-10-17T09:28:49+0000 2026-10-17T11:00:35+0000

    SHERPA-AC1 & STARLINK-35553 Collision Probability (Pc) Trend

    SHERPA-AC1 & STARLINK-35553 Collision Probability (Pc) TrendNot Available

    SHERPA-AC1 & STARLINK-35553 Miss Distance (Miss Distance) Trend

    SHERPA-AC1 & STARLINK-35553 Miss Distance (Miss Distance) TrendNot Available

    SHERPA-AC1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35553Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SHERPA-AC1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35553Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SHERPA-AC1

    No nearby objects data