Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.13246E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T19:08:12+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 30520
    NORAD ID 30520
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 51959
    NORAD ID 51959
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-3704
    Time of Closest Approach 2026-09-07T00:50:13+0000
    Collision Probability (Pc) 3.13246E-6
    Conjunction Distance (km) 1.928 km
    Relative Speed (km/s) 14.683 km/s
    Conjunction Risk Parameters R (Radial): -1.927 | I (In-track): 0.003 | C (Cross-track): 0.045
    Collision Risk Index (CRI) 0.45
    X Position (km) -2486.885 -2486.144
    Position Y (km) 5719.788 5718.196
    Position Z (km) -2843.251 -2842.456
    Velocity X (km/s) -0.092 -3.66
    Velocity Y (km/s) 3.395 -4.182
    Velocity Z (km/s) 6.837 -5.222

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-3704
    Semimajor Axis (a) 6866.715 km 6848.859 km
    Eccentricity (e) 0.005284 0.000101
    Inclination (i) 98.7057° 53.1602°
    RAAN 107.2104° 285.2388°
    Perigee Argument 280.8771° 86.4476°
    Mean Anomaly (M) 78.6521° 273.6640°
    Apogee 524.860 km 471.414 km
    Perigee 452.296 km 470.030 km
    Orbit Epoch 2026-09-05T01:43:34+0000 2026-09-04T12:24:40+0000

    FENGYUN 1C DEB & STARLINK-3704 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-3704 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-3704 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-3704 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3704Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3704Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data