Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.180891E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T21:39:25+0800
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    1 Object 1

    AOE ID 28206
    NORAD ID 28206
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 68644
    NORAD ID 68644
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter NIMBUS 2 DEB QIANFAN-117
    Time of Closest Approach 2026-09-13T03:10:46+0000
    Collision Probability (Pc) 2.180891E-6
    Conjunction Distance (km) 2.223 km
    Relative Speed (km/s) 14.353 km/s
    Conjunction Risk Parameters R (Radial): 0.911 | I (In-track): 0.365 | C (Cross-track): -1.994
    Collision Risk Index (CRI) 0.42
    X Position (km) 2135.683 2134.706
    Position Y (km) -2543.234 -2545.136
    Position Z (km) -6673.87 -6674.475
    Velocity X (km/s) -6.102 4.42
    Velocity Y (km/s) 2.672 -4.819
    Velocity Z (km/s) -3.005 3.253

    Orbital Parameters 国际轨道数据源

    Parameter NIMBUS 2 DEB QIANFAN-117
    Semimajor Axis (a) 7453.484 km 7446.638 km
    Eccentricity (e) 0.004164 0.000231
    Inclination (i) 100.3709° 88.9877°
    RAAN 149.5942° 312.2192°
    Perigee Argument 171.1947° 92.4883°
    Mean Anomaly (M) 352.1314° 267.6533°
    Apogee 1106.385 km 1070.222 km
    Perigee 1044.309 km 1066.780 km
    Orbit Epoch 2026-09-11T04:30:07+0000 2026-09-11T05:16:45+0000

    NIMBUS 2 DEB & QIANFAN-117 Collision Probability (Pc) Trend

    NIMBUS 2 DEB & QIANFAN-117 Collision Probability (Pc) TrendNot Available

    NIMBUS 2 DEB & QIANFAN-117 Miss Distance (Miss Distance) Trend

    NIMBUS 2 DEB & QIANFAN-117 Miss Distance (Miss Distance) TrendNot Available

    NIMBUS 2 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-117Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NIMBUS 2 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-117Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NIMBUS 2 DEB

    No nearby objects data