Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.458929E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T04:41:24+0800
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    1 Object 1

    AOE ID 31731
    NORAD ID 31731
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 39270
    NORAD ID 39270
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB POPACS 3
    Time of Closest Approach 2026-09-09T22:09:23+0000
    Collision Probability (Pc) 1.458929E-6
    Conjunction Distance (km) 2.808 km
    Relative Speed (km/s) 14.798 km/s
    Conjunction Risk Parameters R (Radial): -1.4 | I (In-track): 0.295 | C (Cross-track): 2.416
    Collision Risk Index (CRI) 0.38
    X Position (km) 552.579 551.283
    Position Y (km) 1012.982 1011.232
    Position Z (km) -7044.803 -7046.575
    Velocity X (km/s) 6.465 -5.442
    Velocity Y (km/s) -3.723 5.063
    Velocity Z (km/s) -0.021 -0.108

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB POPACS 3
    Semimajor Axis (a) 7127.409 km 7079.905 km
    Eccentricity (e) 0.001066 0.054646
    Inclination (i) 99.2936° 81.0022°
    RAAN 329.2200° 137.7760°
    Perigee Argument 33.5751° 172.9476°
    Mean Anomaly (M) 326.6110° 187.9840°
    Apogee 756.872 km 1088.654 km
    Perigee 741.672 km 314.882 km
    Orbit Epoch 2026-09-09T04:15:57+0000 2026-09-09T09:24:30+0000

    FENGYUN 1C DEB & POPACS 3 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & POPACS 3 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & POPACS 3 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & POPACS 3 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    POPACS 3Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    POPACS 3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data