Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    7.288149E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T20:44:58+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 31821
    NORAD ID 31821
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    Name FFLY-1
    AOE ID 65320
    NORAD ID 65320
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB FFLY-1
    Time of Closest Approach 2026-10-21T12:45:50+0000
    Collision Probability (Pc) 7.288149E-6
    Conjunction Distance (km) 1.466 km
    Relative Speed (km/s) 14.949 km/s
    Conjunction Risk Parameters R (Radial): 0.019 | I (In-track): 0.279 | C (Cross-track): -1.438
    Collision Risk Index (CRI) 0.52
    X Position (km) 5232.4 5232.435
    Position Y (km) 67.954 66.489
    Position Z (km) 4590.794 4590.805
    Velocity X (km/s) 4.978 -4.907
    Velocity Y (km/s) -1.376 -1.417
    Velocity Z (km/s) -5.627 5.587

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB FFLY-1
    Semimajor Axis (a) 7096.935 km 6967.023 km
    Eccentricity (e) 0.018683 0.001098
    Inclination (i) 98.1486° 97.7298°
    RAAN 172.8953° 7.3008°
    Perigee Argument 136.8860° 113.2374°
    Mean Anomaly (M) 224.7142° 247.0003°
    Apogee 851.391 km 596.537 km
    Perigee 586.205 km 581.235 km
    Orbit Epoch 2026-10-20T21:15:13+0000 2026-10-21T06:08:36+0000

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

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

    FENGYUN 1C DEB & FFLY-1 Miss Distance (Miss Distance) Trend

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

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FFLY-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    FFLY-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data