Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.147628E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T13:56:34+0800
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    1 Object 1

    AOE ID 40339
    NORAD ID 40339
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 62251
    NORAD ID 62251
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter YAOGAN 25B QIANFAN-50
    Time of Closest Approach 2026-09-13T13:14:22+0000
    Collision Probability (Pc) 5.147628E-6
    Conjunction Distance (km) 1.45 km
    Relative Speed (km/s) 8.511 km/s
    Conjunction Risk Parameters R (Radial): 0.166 | I (In-track): 1.171 | C (Cross-track): 0.839
    Collision Risk Index (CRI) 0.49
    X Position (km) 3417.439 3418.319
    Position Y (km) 714.055 715.14
    Position Z (km) -6600.34 -6599.954
    Velocity X (km/s) 0.244 6.25
    Velocity Y (km/s) 7.197 1.581
    Velocity Z (km/s) 1.215 3.409

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 25B QIANFAN-50
    Semimajor Axis (a) 7467.221 km 7446.615 km
    Eccentricity (e) 0.037453 0.001760
    Inclination (i) 63.3863° 89.0159°
    RAAN 89.8757° 13.9414°
    Perigee Argument 9.3926° 127.4425°
    Mean Anomaly (M) 351.3854° 232.8330°
    Apogee 1368.754 km 1081.583 km
    Perigee 809.414 km 1055.373 km
    Orbit Epoch 2026-09-10T23:11:33+0000 2026-09-10T21:33:29+0000

    YAOGAN 25B & QIANFAN-50 Collision Probability (Pc) Trend

    YAOGAN 25B & QIANFAN-50 Collision Probability (Pc) TrendNot Available

    YAOGAN 25B & QIANFAN-50 Miss Distance (Miss Distance) Trend

    YAOGAN 25B & QIANFAN-50 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 25BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-50Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 25BCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-50Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 25B

    No nearby objects data