Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.555556E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T18:27:11+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 47857
    NORAD ID 47857
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 65981
    NORAD ID 65981
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN-31 M SDA_1671
    Time of Closest Approach 2026-10-20T20:04:33+0000
    Collision Probability (Pc) 1.555556E-6
    Conjunction Distance (km) 2.627 km
    Relative Speed (km/s) 13.906 km/s
    Conjunction Risk Parameters R (Radial): -1.689 | I (In-track): 0.705 | C (Cross-track): 1.883
    Collision Risk Index (CRI) 0.39
    X Position (km) 1239.507 1237.883
    Position Y (km) -6472.504 -6474.527
    Position Z (km) -3257.851 -3258.262
    Velocity X (km/s) 4.163 0.617
    Velocity Y (km/s) -2.038 3.388
    Velocity Z (km/s) 5.796 -6.507

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN-31 M SDA_1671
    Semimajor Axis (a) 7467.166 km 7348.802 km
    Eccentricity (e) 0.018561 0.000174
    Inclination (i) 63.4061° 81.2958°
    RAAN 299.3645° 98.3838°
    Perigee Argument 0.7325° 209.7858°
    Mean Anomaly (M) 359.3939° 150.3196°
    Apogee 1227.624 km 971.947 km
    Perigee 950.434 km 969.383 km
    Orbit Epoch 2026-10-19T04:58:30+0000 2026-10-18T18:17:15+0000

    YAOGAN-31 M & SDA_1671 Collision Probability (Pc) Trend

    YAOGAN-31 M & SDA_1671 Collision Probability (Pc) TrendNot Available

    YAOGAN-31 M & SDA_1671 Miss Distance (Miss Distance) Trend

    YAOGAN-31 M & SDA_1671 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN-31 MMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SDA_1671Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN-31 MCollision Probability Trend

    Object 1 Probability TrendNot Available

    SDA_1671Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN-31 M

    No nearby objects data