Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.953207E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T06:25:16+0800
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    1 Object 1

    AOE ID 30082
    NORAD ID 30082
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 53491
    NORAD ID 53491
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-4450
    Time of Closest Approach 2026-09-13T21:49:36+0000
    Collision Probability (Pc) 1.953207E-6
    Conjunction Distance (km) 2.346 km
    Relative Speed (km/s) 14.448 km/s
    Conjunction Risk Parameters R (Radial): 1.409 | I (In-track): -0.6 | C (Cross-track): 1.778
    Collision Risk Index (CRI) 0.41
    X Position (km) 2311.882 2311.11
    Position Y (km) 1954.726 1956.529
    Position Z (km) -6131.51 -6132.797
    Velocity X (km/s) -3.201 6.442
    Velocity Y (km/s) -6.174 2.499
    Velocity Z (km/s) -3.141 3.225

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-4450
    Semimajor Axis (a) 6841.134 km 6833.040 km
    Eccentricity (e) 0.004382 0.000086
    Inclination (i) 98.8350° 97.5201°
    RAAN 235.7165° 22.3463°
    Perigee Argument 324.9797° 191.0097°
    Mean Anomaly (M) 34.8561° 169.1128°
    Apogee 492.974 km 455.490 km
    Perigee 433.020 km 454.316 km
    Orbit Epoch 2026-09-11T12:24:52+0000 2026-09-11T13:51:53+0000

    FENGYUN 1C DEB & STARLINK-4450 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-4450 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-4450 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-4450 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4450Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4450Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data