Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    8.317128E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T01:29:53+0800
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    1 Object 1

    AOE ID 31648
    NORAD ID 31648
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

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

    Conjunction Constraints

    Parameter FENGYUN 1C DEB QIANFAN-21
    Time of Closest Approach 2026-10-21T00:42:59+0000
    Collision Probability (Pc) 8.317128E-6
    Conjunction Distance (km) 1.392 km
    Relative Speed (km/s) 14.083 km/s
    Conjunction Risk Parameters R (Radial): -1.24 | I (In-track): -0.207 | C (Cross-track): -0.596
    Collision Risk Index (CRI) 0.53
    X Position (km) -1904.781 -1903.917
    Position Y (km) -1464.361 -1464.434
    Position Z (km) 6767.086 6765.997
    Velocity X (km/s) 1.171 -5.321
    Velocity Y (km/s) 7.132 -4.592
    Velocity Z (km/s) 1.847 -2.48

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB QIANFAN-21
    Semimajor Axis (a) 7208.323 km 7193.503 km
    Eccentricity (e) 0.004006 0.001261
    Inclination (i) 102.7954° 88.9820°
    RAAN 254.5941° 40.6355°
    Perigee Argument 125.3348° 76.3807°
    Mean Anomaly (M) 235.1567° 283.8788°
    Apogee 859.064 km 824.437 km
    Perigee 801.308 km 806.295 km
    Orbit Epoch 2026-10-19T02:39:46+0000 2026-10-19T07:42:01+0000

    FENGYUN 1C DEB & QIANFAN-21 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & QIANFAN-21 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & QIANFAN-21 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & QIANFAN-21 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C 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

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data