Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.407248E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T23:17:35+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 40143
    NORAD ID 40143
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 63216
    NORAD ID 63216
    Object Type PAYLOAD
    Country
    BW BW

    Conjunction Constraints

    Parameter YAOGAN 21 BOTSAT-1
    Time of Closest Approach 2026-09-16T06:34:47+0000
    Collision Probability (Pc) 1.407248E-6
    Conjunction Distance (km) 2.847 km
    Relative Speed (km/s) 14.369 km/s
    Conjunction Risk Parameters R (Radial): 1.707 | I (In-track): -0.766 | C (Cross-track): 2.146
    Collision Risk Index (CRI) 0.38
    X Position (km) -1777.717 -1779.8
    Position Y (km) 1866.634 1865.518
    Position Z (km) 6345.355 6346.942
    Velocity X (km/s) -2.777 6.47
    Velocity Y (km/s) 6.571 -3.011
    Velocity Z (km/s) -2.707 2.691

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 BOTSAT-1
    Semimajor Axis (a) 6861.812 km 6858.551 km
    Eccentricity (e) 0.000928 0.000322
    Inclination (i) 97.1397° 97.3749°
    RAAN 294.7326° 150.4180°
    Perigee Argument 124.8067° 131.7374°
    Mean Anomaly (M) 235.4047° 228.4141°
    Apogee 490.042 km 482.624 km
    Perigee 477.308 km 478.204 km
    Orbit Epoch 2026-09-15T08:05:00+0000 2026-09-14T10:17:05+0000

    YAOGAN 21 & BOTSAT-1 Collision Probability (Pc) Trend

    YAOGAN 21 & BOTSAT-1 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & BOTSAT-1 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & BOTSAT-1 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    BOTSAT-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    BOTSAT-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data