Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.429625E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T12:48:09+0800
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    1 Object 1

    AOE ID 30744
    NORAD ID 30744
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 51734
    NORAD ID 51734
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-3450
    Time of Closest Approach 2026-09-12T13:14:21+0000
    Collision Probability (Pc) 3.429625E-6
    Conjunction Distance (km) 1.785 km
    Relative Speed (km/s) 12.111 km/s
    Conjunction Risk Parameters R (Radial): -1.769 | I (In-track): 0.138 | C (Cross-track): -0.18
    Collision Risk Index (CRI) 0.46
    X Position (km) 446.573 446.535
    Position Y (km) -4073.498 -4074.425
    Position Z (km) 5465.453 5466.977
    Velocity X (km/s) -1.276 7.591
    Velocity Y (km/s) -6.092 0.856
    Velocity Z (km/s) -4.427 0.018

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-3450
    Semimajor Axis (a) 6837.656 km 6840.877 km
    Eccentricity (e) 0.000141 0.000126
    Inclination (i) 98.7268° 53.1593°
    RAAN 83.1802° 189.9564°
    Perigee Argument 186.0803° 86.9259°
    Mean Anomaly (M) 204.6063° 273.1888°
    Apogee 460.482 km 463.602 km
    Perigee 458.556 km 461.878 km
    Orbit Epoch 2026-09-11T11:48:15+0000 2026-09-11T19:39:13+0000

    FENGYUN 1C DEB & STARLINK-3450 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-3450 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-3450 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-3450 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3450Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3450Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data