Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.180172E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T13:26:02+0800
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    1 Object 1

    AOE ID 28932
    NORAD ID 28932
    Object Type ROCKET BODY
    Country
    JP JP
    VS

    2 Object 2

    AOE ID 59887
    NORAD ID 59887
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter H-2A R/B STARLINK-31976
    Time of Closest Approach 2026-09-04T07:36:50+0000
    Collision Probability (Pc) 2.180172E-6
    Conjunction Distance (km) 2.209 km
    Relative Speed (km/s) 14.029 km/s
    Conjunction Risk Parameters R (Radial): 2.112 | I (In-track): 0.252 | C (Cross-track): -0.598
    Collision Risk Index (CRI) 0.42
    X Position (km) 3503.179 3503.9
    Position Y (km) 4963.998 4965.973
    Position Z (km) -3187.602 -3188.277
    Velocity X (km/s) 3.022 -6.293
    Velocity Y (km/s) 2.133 1.998
    Velocity Z (km/s) 6.682 -3.807

    Orbital Parameters 国际轨道数据源

    Parameter H-2A R/B STARLINK-31976
    Semimajor Axis (a) 6886.848 km 6861.181 km
    Eccentricity (e) 0.004944 0.000133
    Inclination (i) 98.2659° 43.0026°
    RAAN 49.5557° 206.3076°
    Perigee Argument 356.7633° 269.8733°
    Mean Anomaly (M) 3.3272° 90.1966°
    Apogee 542.761 km 483.960 km
    Perigee 474.661 km 482.128 km
    Orbit Epoch 2026-09-03T12:45:54+0000 2026-09-03T07:06:14+0000

    H-2A R/B & STARLINK-31976 Collision Probability (Pc) Trend

    H-2A R/B & STARLINK-31976 Collision Probability (Pc) TrendNot Available

    H-2A R/B & STARLINK-31976 Miss Distance (Miss Distance) Trend

    H-2A R/B & STARLINK-31976 Miss Distance (Miss Distance) TrendNot Available

    H-2A R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31976Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    H-2A R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31976Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with H-2A R/B

    No nearby objects data