Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.095645E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T02:11:24+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 20788
    NORAD ID 20788
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59911
    NORAD ID 59911
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1B TIANQI 27
    Time of Closest Approach 2026-10-21T22:31:57+0000
    Collision Probability (Pc) 3.095645E-5
    Conjunction Distance (km) 0.945 km
    Relative Speed (km/s) 13.553 km/s
    Conjunction Risk Parameters R (Radial): 0.144 | I (In-track): 0.38 | C (Cross-track): 0.854
    Collision Risk Index (CRI) 0.65
    X Position (km) -1003.967 -1004.792
    Position Y (km) 5954.53 5954.813
    Position Z (km) 4047.167 4046.804
    Velocity X (km/s) 0.698 -5.859
    Velocity Y (km/s) 4.233 -3.19
    Velocity Z (km/s) -6.031 3.22

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1B TIANQI 27
    Semimajor Axis (a) 7260.821 km 7274.752 km
    Eccentricity (e) 0.001581 0.000738
    Inclination (i) 98.9900° 44.9785°
    RAAN 272.8176° 60.3371°
    Perigee Argument 347.5483° 137.7016°
    Mean Anomaly (M) 12.5291° 222.4387°
    Apogee 894.167 km 901.985 km
    Perigee 871.201 km 891.245 km
    Orbit Epoch 2026-10-21T06:26:23+0000 2026-10-21T06:51:44+0000

    FENGYUN 1B & TIANQI 27 Collision Probability (Pc) Trend

    FENGYUN 1B & TIANQI 27 Collision Probability (Pc) TrendNot Available

    FENGYUN 1B & TIANQI 27 Miss Distance (Miss Distance) Trend

    FENGYUN 1B & TIANQI 27 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANQI 27Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    TIANQI 27Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1B

    No nearby objects data