Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.411948E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:51:35+0800
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    1 Object 1

    AOE ID 55112
    NORAD ID 55112
    Object Type PAYLOAD
    Country
    CH CH
    VS

    2 Object 2

    AOE ID 59516
    NORAD ID 59516
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ASTROCAST-0404 STARLINK-31671
    Time of Closest Approach 2026-09-03T12:50:58+0000
    Collision Probability (Pc) 3.411948E-5
    Conjunction Distance (km) 0.84 km
    Relative Speed (km/s) 8.878 km/s
    Conjunction Risk Parameters R (Radial): -0.005 | I (In-track): -0.682 | C (Cross-track): 0.489
    Collision Risk Index (CRI) 0.66
    X Position (km) 5536.034 5535.535
    Position Y (km) -1265.753 -1266.022
    Position Z (km) -3853.933 -3854.553
    Velocity X (km/s) 3.839 3.451
    Velocity Y (km/s) -2.121 6.12
    Velocity Z (km/s) 6.227 2.948

    Orbital Parameters 国际轨道数据源

    Parameter ASTROCAST-0404 STARLINK-31671
    Semimajor Axis (a) 6854.995 km 6861.191 km
    Eccentricity (e) 0.000770 0.000154
    Inclination (i) 97.5652° 43.0043°
    RAAN 340.6217° 45.6280°
    Perigee Argument 81.7459° 273.0998°
    Mean Anomaly (M) 278.4654° 86.9677°
    Apogee 482.136 km 484.113 km
    Perigee 471.580 km 481.995 km
    Orbit Epoch 2026-09-02T05:36:02+0000 2026-09-01T10:52:29+0000

    ASTROCAST-0404 & STARLINK-31671 Collision Probability (Pc) Trend

    ASTROCAST-0404 & STARLINK-31671 Collision Probability (Pc) TrendNot Available

    ASTROCAST-0404 & STARLINK-31671 Miss Distance (Miss Distance) Trend

    ASTROCAST-0404 & STARLINK-31671 Miss Distance (Miss Distance) TrendNot Available

    ASTROCAST-0404Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31671Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ASTROCAST-0404Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31671Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ASTROCAST-0404

    No nearby objects data