Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.760045E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T20:40:58+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 31255
    NORAD ID 31255
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65981
    NORAD ID 65981
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB SDA_1671
    Time of Closest Approach 2026-10-22T04:29:08+0000
    Collision Probability (Pc) 1.760045E-6
    Conjunction Distance (km) 1.836 km
    Relative Speed (km/s) 4.762 km/s
    Conjunction Risk Parameters R (Radial): -1.59 | I (In-track): -0.885 | C (Cross-track): 0.24
    Collision Risk Index (CRI) 0.4
    X Position (km) -1292.16 -1292.238
    Position Y (km) 3302.639 3302.644
    Position Z (km) 6432.616 6430.782
    Velocity X (km/s) 4.505 0.083
    Velocity Y (km/s) -4.795 -6.548
    Velocity Z (km/s) 3.179 3.372

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB SDA_1671
    Semimajor Axis (a) 7236.769 km 7348.801 km
    Eccentricity (e) 0.026901 0.000189
    Inclination (i) 99.3105° 81.2967°
    RAAN 126.6807° 96.4530°
    Perigee Argument 195.2976° 205.2378°
    Mean Anomaly (M) 163.9943° 154.8684°
    Apogee 1053.310 km 972.050 km
    Perigee 663.954 km 969.278 km
    Orbit Epoch 2026-10-20T06:11:56+0000 2026-10-20T20:49:10+0000

    FENGYUN 1C DEB & SDA_1671 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & SDA_1671 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & SDA_1671 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & SDA_1671 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SDA_1671Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SDA_1671Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data