Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.381178E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T20:46:30+0800
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    1 Object 1

    AOE ID 7946
    NORAD ID 7946
    Object Type ROCKET BODY
    Country
    US US
    VS

    2 Object 2

    AOE ID 62248
    NORAD ID 62248
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 R/B QIANFAN-47
    Time of Closest Approach 2026-09-13T11:51:18+0000
    Collision Probability (Pc) 1.381178E-6
    Conjunction Distance (km) 2.805 km
    Relative Speed (km/s) 13.436 km/s
    Conjunction Risk Parameters R (Radial): -2.409 | I (In-track): 0.561 | C (Cross-track): 1.322
    Collision Risk Index (CRI) 0.38
    X Position (km) -1543.261 -1542.548
    Position Y (km) -504.764 -503.189
    Position Z (km) -7286.674 -7284.465
    Velocity X (km/s) -6.065 6.925
    Velocity Y (km/s) 3.918 1.652
    Velocity Z (km/s) 0.987 -1.59

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 R/B QIANFAN-47
    Semimajor Axis (a) 7436.365 km 7446.618 km
    Eccentricity (e) 0.004572 0.001660
    Inclination (i) 99.6314° 89.0151°
    RAAN 146.2160° 13.8563°
    Perigee Argument 153.9567° 127.5770°
    Mean Anomaly (M) 0.0106° 232.6892°
    Apogee 1092.228 km 1080.843 km
    Perigee 1024.228 km 1056.119 km
    Orbit Epoch 2026-09-11T04:15:42+0000 2026-09-11T07:02:20+0000

    DELTA 1 R/B & QIANFAN-47 Collision Probability (Pc) Trend

    DELTA 1 R/B & QIANFAN-47 Collision Probability (Pc) TrendNot Available

    DELTA 1 R/B & QIANFAN-47 Miss Distance (Miss Distance) Trend

    DELTA 1 R/B & QIANFAN-47 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-47Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-47Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 R/B

    No nearby objects data