Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.361635E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T06:21:25+0800
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    1 Object 1

    AOE ID 58578
    NORAD ID 58578
    Object Type PAYLOAD
    Country
    JP JP
    VS

    2 Object 2

    AOE ID 59161
    NORAD ID 59161
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter QPS-SAR-5 TSUKUYOMI-I STARLINK-31256
    Time of Closest Approach 2026-09-05T03:56:26+0000
    Collision Probability (Pc) 2.361635E-6
    Conjunction Distance (km) 1.87 km
    Relative Speed (km/s) 8.277 km/s
    Conjunction Risk Parameters R (Radial): 0.94 | I (In-track): -1.356 | C (Cross-track): 0.879
    Collision Risk Index (CRI) 0.42
    X Position (km) 4416.898 4416.398
    Position Y (km) -4085.197 -4086.936
    Position Z (km) 3288.625 3289.095
    Velocity X (km/s) 2.946 5.805
    Velocity Y (km/s) 6.081 3.29
    Velocity Z (km/s) 3.553 -3.696

    Orbital Parameters 国际轨道数据源

    Parameter QPS-SAR-5 TSUKUYOMI-I STARLINK-31256
    Semimajor Axis (a) 6871.453 km 6861.187 km
    Eccentricity (e) 0.002583 0.000142
    Inclination (i) 42.0090° 43.0017°
    RAAN 295.2311° 191.3713°
    Perigee Argument 83.0959° 271.8728°
    Mean Anomaly (M) 277.2813° 88.1961°
    Apogee 511.066 km 484.028 km
    Perigee 475.566 km 482.072 km
    Orbit Epoch 2026-09-02T11:15:39+0000 2026-09-01T22:27:26+0000

    QPS-SAR-5 TSUKUYOMI-I & STARLINK-31256 Collision Probability (Pc) Trend

    QPS-SAR-5 TSUKUYOMI-I & STARLINK-31256 Collision Probability (Pc) TrendNot Available

    QPS-SAR-5 TSUKUYOMI-I & STARLINK-31256 Miss Distance (Miss Distance) Trend

    QPS-SAR-5 TSUKUYOMI-I & STARLINK-31256 Miss Distance (Miss Distance) TrendNot Available

    QPS-SAR-5 TSUKUYOMI-IMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31256Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    QPS-SAR-5 TSUKUYOMI-ICollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31256Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with QPS-SAR-5 TSUKUYOMI-I

    No nearby objects data