Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.168775E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T14:30:27+0800
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    1 Object 1

    AOE ID 49924
    NORAD ID 49924
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 69083
    NORAD ID 69083
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2499 DEB QIANFAN-137
    Time of Closest Approach 2026-10-19T06:20:55+0000
    Collision Probability (Pc) 2.168775E-6
    Conjunction Distance (km) 2.241 km
    Relative Speed (km/s) 14.638 km/s
    Conjunction Risk Parameters R (Radial): -1.96 | I (In-track): 0.089 | C (Cross-track): -1.079
    Collision Risk Index (CRI) 0.42
    X Position (km) -4786.04 -4785.269
    Position Y (km) 2807.775 2806.072
    Position Z (km) -4980.516 -4979.282
    Velocity X (km/s) -4.818 4.119
    Velocity Y (km/s) 1.321 -2.617
    Velocity Z (km/s) 5.463 -5.439

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2499 DEB QIANFAN-137
    Semimajor Axis (a) 7650.875 km 7446.627 km
    Eccentricity (e) 0.027368 0.000202
    Inclination (i) 82.5013° 88.9866°
    RAAN 157.7111° 328.8435°
    Perigee Argument 338.9885° 93.8317°
    Mean Anomaly (M) 20.0150° 266.3065°
    Apogee 1482.131 km 1069.993 km
    Perigee 1063.345 km 1066.987 km
    Orbit Epoch 2026-10-17T08:16:56+0000 2026-10-17T21:15:35+0000

    COSMOS 2499 DEB & QIANFAN-137 Collision Probability (Pc) Trend

    COSMOS 2499 DEB & QIANFAN-137 Collision Probability (Pc) TrendNot Available

    COSMOS 2499 DEB & QIANFAN-137 Miss Distance (Miss Distance) Trend

    COSMOS 2499 DEB & QIANFAN-137 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2499 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-137Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2499 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-137Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2499 DEB

    No nearby objects data