Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.918801E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T21:17:10+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 53909
    NORAD ID 53909
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter H-2A R/B STARLINK-4796
    Time of Closest Approach 2026-09-05T16:53:04+0000
    Collision Probability (Pc) 2.918801E-6
    Conjunction Distance (km) 1.984 km
    Relative Speed (km/s) 14.774 km/s
    Conjunction Risk Parameters R (Radial): 1.942 | I (In-track): -0.1 | C (Cross-track): 0.393
    Collision Risk Index (CRI) 0.44
    X Position (km) 3987.332 3988.743
    Position Y (km) 5410.911 5412.196
    Position Z (km) -1358.06 -1358.598
    Velocity X (km/s) 1.786 -4.458
    Velocity Y (km/s) 0.535 1.809
    Velocity Z (km/s) 7.413 -5.915

    Orbital Parameters 国际轨道数据源

    Parameter H-2A R/B STARLINK-4796
    Semimajor Axis (a) 6886.833 km 6856.522 km
    Eccentricity (e) 0.004940 0.000227
    Inclination (i) 98.2658° 53.1608°
    RAAN 50.1319° 231.6399°
    Perigee Argument 354.9597° 63.6627°
    Mean Anomaly (M) 5.1131° 44.1921°
    Apogee 542.716 km 479.943 km
    Perigee 474.676 km 476.827 km
    Orbit Epoch 2026-09-04T01:24:44+0000 2026-09-04T06:00:02+0000

    H-2A R/B & STARLINK-4796 Collision Probability (Pc) Trend

    H-2A R/B & STARLINK-4796 Collision Probability (Pc) TrendNot Available

    H-2A R/B & STARLINK-4796 Miss Distance (Miss Distance) Trend

    H-2A R/B & STARLINK-4796 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-4796Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    H-2A R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4796Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with H-2A R/B

    No nearby objects data