Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.014019E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T20:04:23+0800
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    1 Object 1

    AOE ID 31346
    NORAD ID 31346
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 54172
    NORAD ID 54172
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-5117
    Time of Closest Approach 2026-10-30T21:43:33+0000
    Collision Probability (Pc) 9.014019E-7
    Conjunction Distance (km) 2.968 km
    Relative Speed (km/s) 7.17 km/s
    Conjunction Risk Parameters R (Radial): -0.439 | I (In-track): 2.59 | C (Cross-track): -1.381
    Collision Risk Index (CRI) 0.34
    X Position (km) 5280.937 5282.337
    Position Y (km) -2302.919 -2302.565
    Position Z (km) -3697.438 -3694.845
    Velocity X (km/s) 3.12 4.818
    Velocity Y (km/s) -2.889 3.827
    Velocity Z (km/s) 6.359 4.51

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-5117
    Semimajor Axis (a) 6878.663 km 6840.824 km
    Eccentricity (e) 0.008876 0.000117
    Inclination (i) 98.8718° 53.1612°
    RAAN 329.0661° 11.8433°
    Perigee Argument 22.1746° 71.2014°
    Mean Anomaly (M) 338.3287° 288.9116°
    Apogee 561.584 km 463.491 km
    Perigee 439.468 km 461.883 km
    Orbit Epoch 2026-10-29T12:43:47+0000 2026-10-29T11:31:08+0000

    FENGYUN 1C DEB & STARLINK-5117 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-5117 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-5117 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-5117 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5117Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5117Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data