Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.162466E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T01:21:08+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 64474
    NORAD ID 64474
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-34474
    Time of Closest Approach 2026-10-20T12:37:21+0000
    Collision Probability (Pc) 2.162466E-6
    Conjunction Distance (km) 1.868 km
    Relative Speed (km/s) 7.161 km/s
    Conjunction Risk Parameters R (Radial): 0.844 | I (In-track): 1.475 | C (Cross-track): -0.775
    Collision Risk Index (CRI) 0.42
    X Position (km) -2843.66 -2844.885
    Position Y (km) 4950.574 4951.692
    Position Z (km) -3774.849 -3773.989
    Velocity X (km/s) -0.885 -6.21
    Velocity Y (km/s) 4.218 -0.198
    Velocity Z (km/s) 6.277 4.427

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-34474
    Semimajor Axis (a) 6813.346 km 6840.836 km
    Eccentricity (e) 0.006406 0.000107
    Inclination (i) 98.4041° 53.1577°
    RAAN 112.4753° 156.5501°
    Perigee Argument 97.3920° 85.5563°
    Mean Anomaly (M) 263.4610° 274.5562°
    Apogee 478.853 km 463.429 km
    Perigee 391.565 km 461.969 km
    Orbit Epoch 2026-10-18T23:26:06+0000 2026-10-19T00:51:29+0000

    FENGYUN 1C DEB & STARLINK-34474 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-34474 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-34474 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-34474 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34474Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34474Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data