Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.875833E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T20:27:39+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 35174
    NORAD ID 35174
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 56331
    NORAD ID 56331
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-5991
    Time of Closest Approach 2026-10-28T00:46:13+0000
    Collision Probability (Pc) 3.875833E-6
    Conjunction Distance (km) 1.433 km
    Relative Speed (km/s) 5.249 km/s
    Conjunction Risk Parameters R (Radial): 0.589 | I (In-track): 1.231 | C (Cross-track): -0.437
    Collision Risk Index (CRI) 0.47
    X Position (km) 530.324 529.366
    Position Y (km) 929.987 930.839
    Position Z (km) -6768.643 -6768.005
    Velocity X (km/s) 6.913 3.203
    Velocity Y (km/s) -3.233 -6.874
    Velocity Z (km/s) 0.031 -0.695

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-5991
    Semimajor Axis (a) 6875.349 km 6843.702 km
    Eccentricity (e) 0.009607 0.000165
    Inclination (i) 98.9523° 97.2840°
    RAAN 331.7866° 293.2394°
    Perigee Argument 215.7468° 92.9559°
    Mean Anomaly (M) 143.7308° 267.1873°
    Apogee 563.266 km 466.695 km
    Perigee 431.158 km 464.435 km
    Orbit Epoch 2026-10-25T08:30:42+0000 2026-10-26T22:33:41+0000

    FENGYUN 1C DEB & STARLINK-5991 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-5991 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-5991 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-5991 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5991Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5991Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data