Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.498049E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T06:25:17+0800
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    1 Object 1

    AOE ID 31281
    NORAD ID 31281
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 63209
    NORAD ID 63209
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB TIANYAN 23
    Time of Closest Approach 2026-09-06T21:28:43+0000
    Collision Probability (Pc) 3.498049E-6
    Conjunction Distance (km) 1.704 km
    Relative Speed (km/s) 10.16 km/s
    Conjunction Risk Parameters R (Radial): 1.062 | I (In-track): 0.999 | C (Cross-track): 0.883
    Collision Risk Index (CRI) 0.46
    X Position (km) -549.006 -547.858
    Position Y (km) 1128.107 1128.786
    Position Z (km) -6674.99 -6676.05
    Velocity X (km/s) 3.447 7.168
    Velocity Y (km/s) 6.804 -2.467
    Velocity Z (km/s) 0.838 -1.009

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB TIANYAN 23
    Semimajor Axis (a) 6826.688 km 6784.009 km
    Eccentricity (e) 0.007125 0.000575
    Inclination (i) 98.4059° 97.4491°
    RAAN 61.2511° 337.7541°
    Perigee Argument 254.0603° 150.6098°
    Mean Anomaly (M) 105.2781° 209.5480°
    Apogee 497.192 km 409.775 km
    Perigee 399.910 km 401.969 km
    Orbit Epoch 2026-09-04T10:33:09+0000 2026-09-04T17:20:50+0000

    FENGYUN 1C DEB & TIANYAN 23 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & TIANYAN 23 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & TIANYAN 23 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & TIANYAN 23 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANYAN 23Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    TIANYAN 23Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data