Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.339546E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T22:11:29+0800
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    1 Object 1

    Name MAST
    AOE ID 31126
    NORAD ID 31126
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 31823
    NORAD ID 31823
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter MAST FENGYUN 1C DEB
    Time of Closest Approach 2026-09-12T17:48:19+0000
    Collision Probability (Pc) 1.339546E-5
    Conjunction Distance (km) 1.223 km
    Relative Speed (km/s) 14.715 km/s
    Conjunction Risk Parameters R (Radial): -0.84 | I (In-track): -0.186 | C (Cross-track): -0.868
    Collision Risk Index (CRI) 0.58
    X Position (km) 4333.095 4334.168
    Position Y (km) 3498.052 3497.777
    Position Z (km) -4341.744 -4342.261
    Velocity X (km/s) -2.614 4.483
    Velocity Y (km/s) -3.907 1.598
    Velocity Z (km/s) -5.861 5.794

    Orbital Parameters 国际轨道数据源

    Parameter MAST FENGYUN 1C DEB
    Semimajor Axis (a) 7062.358 km 7035.232 km
    Eccentricity (e) 0.008224 0.003699
    Inclination (i) 98.4402° 99.5176°
    RAAN 222.9318° 29.5713°
    Perigee Argument 143.1754° 108.9113°
    Mean Anomaly (M) 217.5135° 251.6105°
    Apogee 742.303 km 683.117 km
    Perigee 626.139 km 631.073 km
    Orbit Epoch 2026-09-10T04:04:30+0000 2026-09-11T04:26:26+0000

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

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

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

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

    MASTMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    MASTCollision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with MAST

    No nearby objects data