Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.701971E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T11:11:45+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 68650
    NORAD ID 68650
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 69388
    NORAD ID 69388
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter QIANFAN-123 QIANFAN-171
    Time of Closest Approach 2026-10-20T04:46:46+0000
    Collision Probability (Pc) 1.701971E-6
    Conjunction Distance (km) 1.891 km
    Relative Speed (km/s) 5.105 km/s
    Conjunction Risk Parameters R (Radial): -0.494 | I (In-track): 1.712 | C (Cross-track): 0.633
    Collision Risk Index (CRI) 0.4
    X Position (km) 77.172 75.612
    Position Y (km) 115.895 116.841
    Position Z (km) 7436.79 7436.297
    Velocity X (km/s) -4.526 -7.185
    Velocity Y (km/s) 5.751 1.394
    Velocity Z (km/s) -0.043 0.051

    Orbital Parameters 国际轨道数据源

    Parameter QIANFAN-123 QIANFAN-171
    Semimajor Axis (a) 7446.639 km 7446.593 km
    Eccentricity (e) 0.000143 0.000206
    Inclination (i) 88.9813° 89.0060°
    RAAN 308.2927° 349.0716°
    Perigee Argument 95.2382° 99.6533°
    Mean Anomaly (M) 264.8933° 260.4851°
    Apogee 1069.570 km 1069.988 km
    Perigee 1067.434 km 1066.924 km
    Orbit Epoch 2026-10-19T07:00:15+0000 2026-10-19T17:40:22+0000

    QIANFAN-123 & QIANFAN-171 Collision Probability (Pc) Trend

    QIANFAN-123 & QIANFAN-171 Collision Probability (Pc) TrendNot Available

    QIANFAN-123 & QIANFAN-171 Miss Distance (Miss Distance) Trend

    QIANFAN-123 & QIANFAN-171 Miss Distance (Miss Distance) TrendNot Available

    QIANFAN-123Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-171Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    QIANFAN-123Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-171Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with QIANFAN-123

    No nearby objects data