Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.203886E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T08:56:22+0800
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    1 Object 1

    AOE ID 33684
    NORAD ID 33684
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65474
    NORAD ID 65474
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-34998
    Time of Closest Approach 2026-10-20T17:16:22+0000
    Collision Probability (Pc) 5.203886E-6
    Conjunction Distance (km) 1.554 km
    Relative Speed (km/s) 12.049 km/s
    Conjunction Risk Parameters R (Radial): 0.564 | I (In-track): -0.881 | C (Cross-track): 1.149
    Collision Risk Index (CRI) 0.49
    X Position (km) 3856.7 3858.184
    Position Y (km) 1404.028 1403.634
    Position Z (km) 5471.851 5471.611
    Velocity X (km/s) -4.97 -2.792
    Velocity Y (km/s) -3.961 7.104
    Velocity Z (km/s) 4.385 0.146

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-34998
    Semimajor Axis (a) 7008.133 km 6848.833 km
    Eccentricity (e) 0.026582 0.000099
    Inclination (i) 99.0404° 53.1588°
    RAAN 29.2031° 302.9872°
    Perigee Argument 92.4445° 97.3578°
    Mean Anomaly (M) 270.7221° 262.7535°
    Apogee 816.289 km 471.372 km
    Perigee 443.703 km 470.020 km
    Orbit Epoch 2026-10-18T00:07:31+0000 2026-10-18T10:04:50+0000

    FENGYUN 1C DEB & STARLINK-34998 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-34998 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-34998 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-34998 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34998Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34998Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data