Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.840331E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T23:26:12+0800
    View CDM
    Download CDM 1.0

    1 Object 1

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

    2 Object 2

    AOE ID 62438
    NORAD ID 62438
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SHERPA-AC1 STARLINK-32721
    Time of Closest Approach 2026-09-06T09:22:54+0000
    Collision Probability (Pc) 3.840331E-6
    Conjunction Distance (km) 1.794 km
    Relative Speed (km/s) 14.738 km/s
    Conjunction Risk Parameters R (Radial): -1.218 | I (In-track): 0.335 | C (Cross-track): 1.273
    Collision Risk Index (CRI) 0.47
    X Position (km) 4783.829 4785.431
    Position Y (km) 4618.871 4618.739
    Position Z (km) -1611.207 -1612.001
    Velocity X (km/s) 2.003 -4.283
    Velocity Y (km/s) 0.477 2.409
    Velocity Z (km/s) 7.347 -5.841

    Orbital Parameters 国际轨道数据源

    Parameter SHERPA-AC1 STARLINK-32721
    Semimajor Axis (a) 6832.441 km 6840.847 km
    Eccentricity (e) 0.000770 0.000199
    Inclination (i) 97.6796° 53.1586°
    RAAN 38.9955° 224.9511°
    Perigee Argument 163.0595° 89.0520°
    Mean Anomaly (M) 197.0907° 271.0710°
    Apogee 459.567 km 464.075 km
    Perigee 449.041 km 461.345 km
    Orbit Epoch 2026-09-03T09:34:43+0000 2026-09-03T22:41:17+0000

    SHERPA-AC1 & STARLINK-32721 Collision Probability (Pc) Trend

    SHERPA-AC1 & STARLINK-32721 Collision Probability (Pc) TrendNot Available

    SHERPA-AC1 & STARLINK-32721 Miss Distance (Miss Distance) Trend

    SHERPA-AC1 & STARLINK-32721 Miss Distance (Miss Distance) TrendNot Available

    SHERPA-AC1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-32721Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SHERPA-AC1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-32721Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SHERPA-AC1

    No nearby objects data