Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.650574E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T04:42:59+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 35217
    NORAD ID 35217
    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 2026-10-29T15:25:34+0000
    Collision Probability (Pc) 2.650574E-6
    Conjunction Distance (km) 1.966 km
    Relative Speed (km/s) 12.22 km/s
    Conjunction Risk Parameters R (Radial): 0.089 | I (In-track): 1.148 | C (Cross-track): 1.593
    Collision Risk Index (CRI) 0.43
    X Position (km) 1262.248 1260.358
    Position Y (km) 874.217 874.72
    Position Z (km) -7040.395 -7040.58
    Velocity X (km/s) 2.616 5.585
    Velocity Y (km/s) -7.059 4.63
    Velocity Z (km/s) -0.384 1.583

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB QIANFAN-21
    Semimajor Axis (a) 7418.595 km 7193.475 km
    Eccentricity (e) 0.029793 0.001201
    Inclination (i) 101.8895° 88.9828°
    RAAN 285.5519° 39.7138°
    Perigee Argument 280.8492° 54.3727°
    Mean Anomaly (M) 75.9247° 305.8582°
    Apogee 1261.479 km 823.978 km
    Perigee 819.437 km 806.698 km
    Orbit Epoch 2026-10-26T04:48:21+0000 2026-10-27T06:24:35+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