Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.672288E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:52:29+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 30172
    NORAD ID 30172
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 43277
    NORAD ID 43277
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB YAOGAN-31 C
    Time of Closest Approach 2026-10-27T21:20:05+0000
    Collision Probability (Pc) 3.672288E-6
    Conjunction Distance (km) 1.821 km
    Relative Speed (km/s) 14.721 km/s
    Conjunction Risk Parameters R (Radial): 1.804 | I (In-track): 0.029 | C (Cross-track): -0.249
    Collision Risk Index (CRI) 0.46
    X Position (km) -3305.714 -3304.674
    Position Y (km) 6054.898 6053.481
    Position Z (km) 2258.273 2257.8
    Velocity X (km/s) -0.01 -2.137
    Velocity Y (km/s) 2.628 -3.475
    Velocity Z (km/s) -6.912 6.313

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB YAOGAN-31 C
    Semimajor Axis (a) 7223.886 km 7467.167 km
    Eccentricity (e) 0.006951 0.028719
    Inclination (i) 99.2569° 63.3919°
    RAAN 294.5984° 110.7264°
    Perigee Argument 30.3236° 7.5928°
    Mean Anomaly (M) 24.1504° 352.9308°
    Apogee 895.963 km 1303.479 km
    Perigee 795.535 km 874.581 km
    Orbit Epoch 2026-10-26T22:45:18+0000 2026-10-27T06:58:09+0000

    FENGYUN 1C DEB & YAOGAN-31 C Collision Probability (Pc) Trend

    FENGYUN 1C DEB & YAOGAN-31 C Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & YAOGAN-31 C Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & YAOGAN-31 C Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAOGAN-31 CMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YAOGAN-31 CCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data