Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.754648E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T04:43:00+0800
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    1 Object 1

    AOE ID 47067
    NORAD ID 47067
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 61554
    NORAD ID 61554
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2251 DEB QIANFAN-21
    Time of Closest Approach 2026-10-30T03:05:43+0000
    Collision Probability (Pc) 1.754648E-6
    Conjunction Distance (km) 2.38 km
    Relative Speed (km/s) 12.671 km/s
    Conjunction Risk Parameters R (Radial): 1.804 | I (In-track): 0.782 | C (Cross-track): 1.342
    Collision Risk Index (CRI) 0.4
    X Position (km) -1686.341 -1687.346
    Position Y (km) -1543.218 -1542.263
    Position Z (km) -6838.478 -6836.544
    Velocity X (km/s) 1.665 5.469
    Velocity Y (km/s) -7.089 4.436
    Velocity Z (km/s) 1.295 -2.347

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB QIANFAN-21
    Semimajor Axis (a) 7145.666 km 7193.475 km
    Eccentricity (e) 0.015805 0.001201
    Inclination (i) 74.2038° 88.9828°
    RAAN 287.0999° 39.7138°
    Perigee Argument 49.2235° 54.3727°
    Mean Anomaly (M) 99.8716° 305.8582°
    Apogee 880.468 km 823.978 km
    Perigee 654.590 km 806.698 km
    Orbit Epoch 2026-10-26T09:56:48+0000 2026-10-27T06:24:35+0000

    COSMOS 2251 DEB & QIANFAN-21 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & QIANFAN-21 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & QIANFAN-21 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & QIANFAN-21 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data