Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.756928E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T21:26:53+0800
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    1 Object 1

    AOE ID 30815
    NORAD ID 30815
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 58199
    NORAD ID 58199
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB TIANHUI 5A
    Time of Closest Approach 2026-09-04T17:50:03+0000
    Collision Probability (Pc) 1.756928E-6
    Conjunction Distance (km) 2.498 km
    Relative Speed (km/s) 14.786 km/s
    Conjunction Risk Parameters R (Radial): -2.151 | I (In-track): 0.273 | C (Cross-track): 1.24
    Collision Risk Index (CRI) 0.4
    X Position (km) 721.999 723.034
    Position Y (km) 4949.255 4947.556
    Position Z (km) 4870.704 4869.193
    Velocity X (km/s) 0.944 2.17
    Velocity Y (km/s) -5.336 4.922
    Velocity Z (km/s) 5.268 -5.309

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB TIANHUI 5A
    Semimajor Axis (a) 6986.738 km 6983.640 km
    Eccentricity (e) 0.000238 0.000155
    Inclination (i) 99.2985° 97.8221°
    RAAN 90.0413° 251.7797°
    Perigee Argument 73.0297° 89.6519°
    Mean Anomaly (M) 87.9106° 270.4875°
    Apogee 610.265 km 606.587 km
    Perigee 606.937 km 604.419 km
    Orbit Epoch 2026-09-04T00:35:07+0000 2026-09-02T11:57:20+0000

    FENGYUN 1C DEB & TIANHUI 5A Collision Probability (Pc) Trend

    FENGYUN 1C DEB & TIANHUI 5A Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & TIANHUI 5A Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & TIANHUI 5A Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANHUI 5AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    TIANHUI 5ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data