Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.920581E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T14:15:17+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 34913
    NORAD ID 34913
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter ENVISAT COSMOS 2251 DEB
    Time of Closest Approach 2026-10-29T14:09:57+0000
    Collision Probability (Pc) 1.920581E-6
    Conjunction Distance (km) 2.382 km
    Relative Speed (km/s) 14.775 km/s
    Conjunction Risk Parameters R (Radial): 1.794 | I (In-track): 0.239 | C (Cross-track): 1.55
    Collision Risk Index (CRI) 0.41
    X Position (km) 160.223 158.898
    Position Y (km) 3329.22 3330.752
    Position Z (km) 6306.199 6307.452
    Velocity X (km/s) 2.637 -4.656
    Velocity Y (km/s) 6.16 -5.133
    Velocity Z (km/s) -3.312 2.816

    Orbital Parameters 国际轨道数据源

    Parameter ENVISAT COSMOS 2251 DEB
    Semimajor Axis (a) 7139.643 km 7154.170 km
    Eccentricity (e) 0.000133 0.001995
    Inclination (i) 98.4003° 74.0285°
    RAAN 248.3353° 61.7680°
    Perigee Argument 84.4370° 98.4415°
    Mean Anomaly (M) 293.1890° 275.2237°
    Apogee 762.453 km 790.308 km
    Perigee 760.559 km 761.758 km
    Orbit Epoch 2026-10-26T20:37:43+0000 2026-10-25T14:31:46+0000

    ENVISAT & COSMOS 2251 DEB Collision Probability (Pc) Trend

    ENVISAT & COSMOS 2251 DEB Collision Probability (Pc) TrendNot Available

    ENVISAT & COSMOS 2251 DEB Miss Distance (Miss Distance) Trend

    ENVISAT & COSMOS 2251 DEB Miss Distance (Miss Distance) TrendNot Available

    ENVISATMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ENVISATCollision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ENVISAT

    No nearby objects data