Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.864921E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T23:25:04+0800
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    1 Object 1

    AOE ID 31313
    NORAD ID 31313
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    Name NPP
    AOE ID 37849
    NORAD ID 37849
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB NPP
    Time of Closest Approach 2026-11-01T17:38:03+0000
    Collision Probability (Pc) 5.864921E-7
    Conjunction Distance (km) 2.919 km
    Relative Speed (km/s) 3.056 km/s
    Conjunction Risk Parameters R (Radial): 2.048 | I (In-track): 2.039 | C (Cross-track): -0.415
    Collision Risk Index (CRI) 0.3
    X Position (km) -882.905 -883.877
    Position Y (km) 722.832 720.944
    Position Z (km) 7109.083 7107.081
    Velocity X (km/s) 5.521 3.097
    Velocity Y (km/s) 4.97 6.757
    Velocity Z (km/s) 0.211 -0.299

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB NPP
    Semimajor Axis (a) 7194.608 km 7205.041 km
    Eccentricity (e) 0.004502 0.000106
    Inclination (i) 99.0035° 98.8088°
    RAAN 217.4055° 242.9864°
    Perigee Argument 346.9615° 334.8881°
    Mean Anomaly (M) 13.0395° 25.2244°
    Apogee 848.860 km 827.665 km
    Perigee 784.082 km 826.143 km
    Orbit Epoch 2026-10-28T11:56:37+0000 2026-10-29T23:13:37+0000

    FENGYUN 1C DEB & NPP Collision Probability (Pc) Trend

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

    FENGYUN 1C DEB & NPP Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & NPP Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NPPMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    NPPCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data