Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.757747E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T21:13:56+0800
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    1 Object 1

    AOE ID 31780
    NORAD ID 31780
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 56493
    NORAD ID 56493
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-5841
    Time of Closest Approach 2026-09-15T04:41:59+0000
    Collision Probability (Pc) 1.757747E-6
    Conjunction Distance (km) 2.435 km
    Relative Speed (km/s) 13.664 km/s
    Conjunction Risk Parameters R (Radial): 2.386 | I (In-track): 0.202 | C (Cross-track): -0.439
    Collision Risk Index (CRI) 0.4
    X Position (km) -899.577 -899.665
    Position Y (km) -2250.613 -2250.081
    Position Z (km) -6521.088 -6518.714
    Velocity X (km/s) -0.927 6.402
    Velocity Y (km/s) 7.194 -3.996
    Velocity Z (km/s) -2.292 0.495

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-5841
    Semimajor Axis (a) 7036.682 km 6950.199 km
    Eccentricity (e) 0.014612 0.000334
    Inclination (i) 99.3017° 69.9999°
    RAAN 90.5220° 334.1935°
    Perigee Argument 294.8393° 267.0148°
    Mean Anomaly (M) 63.7674° 93.0629°
    Apogee 761.365 km 574.382 km
    Perigee 555.725 km 569.742 km
    Orbit Epoch 2026-09-11T19:32:40+0000 2026-09-12T04:58:56+0000

    FENGYUN 1C DEB & STARLINK-5841 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-5841 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-5841 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-5841 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5841Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5841Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data