Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.684018E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T13:38:39+0800
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    1 Object 1

    AOE ID 30496
    NORAD ID 30496
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 41456
    NORAD ID 41456
    Object Type PAYLOAD
    Country
    ESA ESA

    Conjunction Constraints

    Parameter FENGYUN 1C DEB SENTINEL 1B
    Time of Closest Approach 2026-10-21T17:01:12+0000
    Collision Probability (Pc) 3.684018E-6
    Conjunction Distance (km) 1.759 km
    Relative Speed (km/s) 12.685 km/s
    Conjunction Risk Parameters R (Radial): -0.982 | I (In-track): -0.79 | C (Cross-track): 1.226
    Collision Risk Index (CRI) 0.46
    X Position (km) 1622.288 1621.284
    Position Y (km) 958.47 959.57
    Position Z (km) -6705.79 -6704.855
    Velocity X (km/s) -2.97 7.341
    Velocity Y (km/s) -6.711 -0.214
    Velocity Z (km/s) -1.772 1.749

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB SENTINEL 1B
    Semimajor Axis (a) 6948.858 km 6946.485 km
    Eccentricity (e) 0.011989 0.001638
    Inclination (i) 98.7908° 98.0767°
    RAAN 242.4344° 359.5170°
    Perigee Argument 164.2761° 86.2587°
    Mean Anomaly (M) 196.2233° 274.0508°
    Apogee 654.030 km 579.730 km
    Perigee 487.412 km 556.966 km
    Orbit Epoch 2026-10-20T07:50:21+0000 2026-10-20T23:44:42+0000

    FENGYUN 1C DEB & SENTINEL 1B Collision Probability (Pc) Trend

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

    FENGYUN 1C DEB & SENTINEL 1B Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & SENTINEL 1B Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SENTINEL 1BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SENTINEL 1BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data