Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.917663E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T06:46:17+0800
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    1 Object 1

    AOE ID 39211
    NORAD ID 39211
    Object Type ROCKET BODY
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 55974
    NORAD ID 55974
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter CZ-4C R/B TIANMU-1 04
    Time of Closest Approach 2026-09-13T01:35:59+0000
    Collision Probability (Pc) 1.917663E-6
    Conjunction Distance (km) 2.282 km
    Relative Speed (km/s) 12.75 km/s
    Conjunction Risk Parameters R (Radial): 2.136 | I (In-track): 0.457 | C (Cross-track): 0.66
    Collision Risk Index (CRI) 0.41
    X Position (km) -1248.212 -1249.131
    Position Y (km) -1090.011 -1089.749
    Position Z (km) -6596.9 -6598.971
    Velocity X (km/s) -7.463 2.009
    Velocity Y (km/s) -0.732 7.203
    Velocity Z (km/s) 1.567 -1.572

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B TIANMU-1 04
    Semimajor Axis (a) 6824.462 km 6794.340 km
    Eccentricity (e) 0.006122 0.000463
    Inclination (i) 97.9601° 97.5192°
    RAAN 184.5378° 70.2180°
    Perigee Argument 335.4467° 124.8154°
    Mean Anomaly (M) 24.3865° 235.3533°
    Apogee 488.104 km 419.350 km
    Perigee 404.546 km 413.056 km
    Orbit Epoch 2026-09-10T13:06:58+0000 2026-09-10T13:37:16+0000

    CZ-4C R/B & TIANMU-1 04 Collision Probability (Pc) Trend

    CZ-4C R/B & TIANMU-1 04 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & TIANMU-1 04 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & TIANMU-1 04 Miss Distance (Miss Distance) TrendNot Available

    CZ-4C R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 04Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 04Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data