Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.696072E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T16:42:25+0800
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    1 Object 1

    AOE ID 40879
    NORAD ID 40879
    Object Type ROCKET BODY
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 68644
    NORAD ID 68644
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter CZ-4C R/B QIANFAN-117
    Time of Closest Approach 2026-10-29T01:48:21+0000
    Collision Probability (Pc) 1.696072E-6
    Conjunction Distance (km) 2.533 km
    Relative Speed (km/s) 14.517 km/s
    Conjunction Risk Parameters R (Radial): 2.52 | I (In-track): -0.041 | C (Cross-track): 0.256
    Collision Risk Index (CRI) 0.4
    X Position (km) 2686.137 2687.267
    Position Y (km) -3347.559 -3348.56
    Position Z (km) 6074.608 6076.641
    Velocity X (km/s) 1.737 -3.566
    Velocity Y (km/s) -5.902 4.805
    Velocity Z (km/s) -4.028 4.215

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B QIANFAN-117
    Semimajor Axis (a) 7512.370 km 7446.628 km
    Eccentricity (e) 0.009364 0.000175
    Inclination (i) 100.5764° 88.9805°
    RAAN 111.2208° 307.5181°
    Perigee Argument 139.4960° 94.5647°
    Mean Anomaly (M) 221.3179° 265.5704°
    Apogee 1204.578 km 1069.792 km
    Perigee 1063.888 km 1067.190 km
    Orbit Epoch 2026-10-26T22:45:55+0000 2026-10-26T23:45:58+0000

    CZ-4C R/B & QIANFAN-117 Collision Probability (Pc) Trend

    CZ-4C R/B & QIANFAN-117 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & QIANFAN-117 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & QIANFAN-117 Miss Distance (Miss Distance) TrendNot Available

    CZ-4C R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-117Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-117Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data