Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.267858E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T22:42:10+0800
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    1 Object 1

    Name ENVISAT
    AOE ID 27386
    NORAD ID 27386
    Object Type PAYLOAD
    Country
    ESA ESA
    ← VS →

    2 Object 2

    AOE ID 30044
    NORAD ID 30044
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter ENVISAT FENGYUN 1C DEB
    Time of Closest Approach 2026-10-29T20:43:33+0000
    Collision Probability (Pc) 8.267858E-7
    Conjunction Distance (km) 2.455 km
    Relative Speed (km/s) 3.762 km/s
    Conjunction Risk Parameters R (Radial): 1.191 | I (In-track): -2.08 | C (Cross-track): -0.527
    Collision Risk Index (CRI) 0.33
    X Position (km) -914.62 -913.274
    Position Y (km) 547.459 549.151
    Position Z (km) 7051.149 7049.988
    Velocity X (km/s) 2.43 5.52
    Velocity Y (km/s) 7.064 4.99
    Velocity Z (km/s) -0.233 0.317

    Orbital Parameters 国际轨道数据源

    Parameter ENVISAT FENGYUN 1C DEB
    Semimajor Axis (a) 7139.643 km 7086.325 km
    Eccentricity (e) 0.000133 0.007320
    Inclination (i) 98.4004° 98.2104°
    RAAN 248.7705° 219.1772°
    Perigee Argument 84.4086° 266.8555°
    Mean Anomaly (M) 73.5571° 92.4266°
    Apogee 762.457 km 760.058 km
    Perigee 760.555 km 656.318 km
    Orbit Epoch 2026-10-27T07:17:28+0000 2026-10-27T05:37:11+0000

    ENVISAT & FENGYUN 1C DEB Collision Probability (Pc) Trend

    ENVISAT & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    ENVISAT & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    ENVISAT & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    ENVISATMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ENVISATCollision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ENVISAT

    No nearby objects data