Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.821702E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T00:43:57+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 53419
    NORAD ID 53419
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SHERPA-AC1 STARLINK-4476
    Time of Closest Approach 2026-09-03T20:34:48+0000
    Collision Probability (Pc) 2.821702E-6
    Conjunction Distance (km) 1.633 km
    Relative Speed (km/s) 6.004 km/s
    Conjunction Risk Parameters R (Radial): 1.617 | I (In-track): 0.209 | C (Cross-track): -0.092
    Collision Risk Index (CRI) 0.44
    X Position (km) 5247.266 5248.423
    Position Y (km) 4012.996 4013.96
    Position Z (km) 1765.261 1765.89
    Velocity X (km/s) -0.919 -4.114
    Velocity Y (km/s) -2.032 2.819
    Velocity Z (km/s) 7.302 5.785

    Orbital Parameters 国际轨道数据源

    Parameter SHERPA-AC1 STARLINK-4476
    Semimajor Axis (a) 6832.484 km 6840.865 km
    Eccentricity (e) 0.000760 0.000111
    Inclination (i) 97.6796° 53.1625°
    RAAN 37.7034° 35.3084°
    Perigee Argument 167.2132° 80.2006°
    Mean Anomaly (M) 192.9306° 279.9122°
    Apogee 459.541 km 463.486 km
    Perigee 449.153 km 461.970 km
    Orbit Epoch 2026-09-02T03:53:44+0000 2026-09-01T20:02:14+0000

    SHERPA-AC1 & STARLINK-4476 Collision Probability (Pc) Trend

    SHERPA-AC1 & STARLINK-4476 Collision Probability (Pc) TrendNot Available

    SHERPA-AC1 & STARLINK-4476 Miss Distance (Miss Distance) Trend

    SHERPA-AC1 & STARLINK-4476 Miss Distance (Miss Distance) TrendNot Available

    SHERPA-AC1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4476Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SHERPA-AC1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4476Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SHERPA-AC1

    No nearby objects data