Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.299927E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T13:02:01+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 63929
    NORAD ID 63929
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SHERPA-AC1 STARLINK-33989
    Time of Closest Approach 2026-09-07T03:53:07+0000
    Collision Probability (Pc) 3.299927E-6
    Conjunction Distance (km) 1.87 km
    Relative Speed (km/s) 13.993 km/s
    Conjunction Risk Parameters R (Radial): -0.789 | I (In-track): -0.666 | C (Cross-track): 1.559
    Collision Risk Index (CRI) 0.45
    X Position (km) 1156.758 1157.198
    Position Y (km) 2247.892 2246.099
    Position Z (km) -6359.673 -6359.377
    Velocity X (km/s) 5.473 -7.5
    Velocity Y (km/s) 4.608 0.871
    Velocity Z (km/s) 2.621 -1.057

    Orbital Parameters 国际轨道数据源

    Parameter SHERPA-AC1 STARLINK-33989
    Semimajor Axis (a) 6832.403 km 6872.675 km
    Eccentricity (e) 0.000780 0.000323
    Inclination (i) 97.6794° 70.0001°
    RAAN 40.3556° 182.2191°
    Perigee Argument 158.7267° 271.4197°
    Mean Anomaly (M) 201.4303° 234.6582°
    Apogee 459.596 km 496.760 km
    Perigee 448.936 km 492.316 km
    Orbit Epoch 2026-09-04T16:49:25+0000 2026-09-04T22:00:02+0000

    SHERPA-AC1 & STARLINK-33989 Collision Probability (Pc) Trend

    SHERPA-AC1 & STARLINK-33989 Collision Probability (Pc) TrendNot Available

    SHERPA-AC1 & STARLINK-33989 Miss Distance (Miss Distance) Trend

    SHERPA-AC1 & STARLINK-33989 Miss Distance (Miss Distance) TrendNot Available

    SHERPA-AC1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33989Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SHERPA-AC1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33989Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SHERPA-AC1

    No nearby objects data