Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.608838E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T17:48:46+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 31938
    NORAD ID 31938
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59579
    NORAD ID 59579
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-31686
    Time of Closest Approach 2026-10-22T15:16:36+0000
    Collision Probability (Pc) 3.608838E-6
    Conjunction Distance (km) 1.815 km
    Relative Speed (km/s) 14.122 km/s
    Conjunction Risk Parameters R (Radial): 0.559 | I (In-track): 0.674 | C (Cross-track): 1.59
    Collision Risk Index (CRI) 0.46
    X Position (km) -5705.908 -5706.267
    Position Y (km) -2141.415 -2143.097
    Position Z (km) 3141.947 3141.367
    Velocity X (km/s) -3.757 4.07
    Velocity Y (km/s) 0.016 -5.175
    Velocity Z (km/s) -6.694 3.852

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-31686
    Semimajor Axis (a) 6948.297 km 6861.170 km
    Eccentricity (e) 0.014235 0.000107
    Inclination (i) 98.8941° 43.0033°
    RAAN 14.8430° 170.3807°
    Perigee Argument 131.1668° 269.9339°
    Mean Anomaly (M) 230.1934° 90.1389°
    Apogee 669.072 km 483.770 km
    Perigee 471.248 km 482.296 km
    Orbit Epoch 2026-10-21T16:10:45+0000 2026-10-22T00:58:11+0000

    FENGYUN 1C DEB & STARLINK-31686 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-31686 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-31686 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-31686 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31686Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31686Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data