Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    6.844296E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T21:38:22+0800
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    1 Object 1

    AOE ID 30556
    NORAD ID 30556
    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 2026-10-18T05:17:43+0000
    Collision Probability (Pc) 6.844296E-6
    Conjunction Distance (km) 1.452 km
    Relative Speed (km/s) 13.041 km/s
    Conjunction Risk Parameters R (Radial): -0.252 | I (In-track): 0.7 | C (Cross-track): -1.247
    Collision Risk Index (CRI) 0.52
    X Position (km) -1010.21 -1008.911
    Position Y (km) -702.334 -702.852
    Position Z (km) 7105.093 7105.482
    Velocity X (km/s) -1.157 -5.538
    Velocity Y (km/s) 7.346 -4.803
    Velocity Z (km/s) 0.55 -1.252

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB QIANFAN-21
    Semimajor Axis (a) 7266.196 km 7208.617 km
    Eccentricity (e) 0.006749 0.001388
    Inclination (i) 98.8027° 88.9812°
    RAAN 277.3259° 40.9293°
    Perigee Argument 100.7429° 65.4485°
    Mean Anomaly (M) 324.7883° 294.8150°
    Apogee 937.097 km 840.487 km
    Perigee 839.021 km 820.473 km
    Orbit Epoch 2026-10-17T05:12:51+0000 2026-10-16T18:54:10+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