Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.584123E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:51:35+0800
    View CDM
    Download CDM 1.0

    1 Object 1

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

    2 Object 2

    AOE ID 61628
    NORAD ID 61628
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ASTROCAST-0404 STARLINK-32421
    Time of Closest Approach 2026-09-03T02:58:49+0000
    Collision Probability (Pc) 1.584123E-6
    Conjunction Distance (km) 2.494 km
    Relative Speed (km/s) 12.355 km/s
    Conjunction Risk Parameters R (Radial): -2.27 | I (In-track): -0.595 | C (Cross-track): -0.841
    Collision Risk Index (CRI) 0.39
    X Position (km) -4581.805 -4580.428
    Position Y (km) 2178.769 2178.914
    Position Z (km) -4626.076 -4624.003
    Velocity X (km/s) 5.136 -3.897
    Velocity Y (km/s) -0.941 -6.497
    Velocity Z (km/s) -5.539 0.799

    Orbital Parameters 国际轨道数据源

    Parameter ASTROCAST-0404 STARLINK-32421
    Semimajor Axis (a) 6854.995 km 6861.176 km
    Eccentricity (e) 0.000770 0.000134
    Inclination (i) 97.5652° 43.0041°
    RAAN 340.6217° 242.0791°
    Perigee Argument 81.7459° 271.1488°
    Mean Anomaly (M) 278.4654° 88.9210°
    Apogee 482.136 km 483.960 km
    Perigee 471.580 km 482.118 km
    Orbit Epoch 2026-09-02T05:36:02+0000 2026-09-01T10:32:01+0000

    ASTROCAST-0404 & STARLINK-32421 Collision Probability (Pc) Trend

    ASTROCAST-0404 & STARLINK-32421 Collision Probability (Pc) TrendNot Available

    ASTROCAST-0404 & STARLINK-32421 Miss Distance (Miss Distance) Trend

    ASTROCAST-0404 & STARLINK-32421 Miss Distance (Miss Distance) TrendNot Available

    ASTROCAST-0404Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-32421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ASTROCAST-0404Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-32421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ASTROCAST-0404

    No nearby objects data