Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.366067E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T15:39:21+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 61554
    NORAD ID 61554
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 89494
    NORAD ID 89494
    Object Type UNKNOWN
    Country

    Conjunction Constraints

    Parameter QIANFAN-21 TBA - TO BE ASSIGNED
    Time of Closest Approach 2026-09-11T19:46:00+0000
    Collision Probability (Pc) 2.366067E-6
    Conjunction Distance (km) 1.899 km
    Relative Speed (km/s) 8.853 km/s
    Conjunction Risk Parameters R (Radial): -1.619 | I (In-track): -0.789 | C (Cross-track): -0.597
    Collision Risk Index (CRI) 0.42
    X Position (km) 952.265 951.08
    Position Y (km) 772.734 772.431
    Position Z (km) -7096.94 -7095.488
    Velocity X (km/s) 5.162 6.529
    Velocity Y (km/s) 5.194 -3.525
    Velocity Z (km/s) 1.251 0.548

    Orbital Parameters 国际轨道数据源

    Parameter QIANFAN-21 TBA - TO BE ASSIGNED
    Semimajor Axis (a) 7193.611 km 7211.927 km
    Eccentricity (e) 0.001031 0.007948
    Inclination (i) 88.9761° 99.0109°
    RAAN 45.1035° 329.4657°
    Perigee Argument 184.5579° 353.2064°
    Mean Anomaly (M) 175.5520° 6.8026°
    Apogee 822.893 km 891.111 km
    Perigee 808.055 km 776.469 km
    Orbit Epoch 2026-09-10T22:12:12+0000 2026-09-09T00:24:22+0000

    QIANFAN-21 & TBA - TO BE ASSIGNED Collision Probability (Pc) Trend

    QIANFAN-21 & TBA - TO BE ASSIGNED Collision Probability (Pc) TrendNot Available

    QIANFAN-21 & TBA - TO BE ASSIGNED Miss Distance (Miss Distance) Trend

    QIANFAN-21 & TBA - TO BE ASSIGNED Miss Distance (Miss Distance) TrendNot Available

    QIANFAN-21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TBA - TO BE ASSIGNEDMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    QIANFAN-21Collision Probability Trend

    Object 1 Probability TrendNot Available

    TBA - TO BE ASSIGNEDCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with QIANFAN-21

    No nearby objects data