Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.486837E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:51:33+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 58408
    NORAD ID 58408
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ASTROCAST-0404 STARLINK-30906
    Time of Closest Approach 2026-09-02T22:45:40+0000
    Collision Probability (Pc) 7.486837E-6
    Conjunction Distance (km) 1.436 km
    Relative Speed (km/s) 14.066 km/s
    Conjunction Risk Parameters R (Radial): 1.301 | I (In-track): 0.239 | C (Cross-track): -0.56
    Collision Risk Index (CRI) 0.52
    X Position (km) 6015.248 6016.651
    Position Y (km) -1627.285 -1627.127
    Position Z (km) -2873.045 -2873.301
    Velocity X (km/s) 2.749 -0.222
    Velocity Y (km/s) -1.888 6.418
    Velocity Z (km/s) 6.851 -4.105

    Orbital Parameters 国际轨道数据源

    Parameter ASTROCAST-0404 STARLINK-30906
    Semimajor Axis (a) 6854.995 km 6861.204 km
    Eccentricity (e) 0.000770 0.000055
    Inclination (i) 97.5652° 42.9998°
    RAAN 340.6217° 142.0897°
    Perigee Argument 81.7459° 239.4541°
    Mean Anomaly (M) 278.4654° 120.6256°
    Apogee 482.136 km 483.448 km
    Perigee 471.580 km 482.686 km
    Orbit Epoch 2026-09-02T05:36:02+0000 2026-09-01T17:33:55+0000

    ASTROCAST-0404 & STARLINK-30906 Collision Probability (Pc) Trend

    ASTROCAST-0404 & STARLINK-30906 Collision Probability (Pc) TrendNot Available

    ASTROCAST-0404 & STARLINK-30906 Miss Distance (Miss Distance) Trend

    ASTROCAST-0404 & STARLINK-30906 Miss Distance (Miss Distance) TrendNot Available

    ASTROCAST-0404Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30906Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ASTROCAST-0404Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30906Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ASTROCAST-0404

    No nearby objects data