Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.955092E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T23:31:14+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) 1.955092E-6
    Conjunction Distance (km) 2.361 km
    Relative Speed (km/s) 14.775 km/s
    Conjunction Risk Parameters R (Radial): 1.799 | I (In-track): 0.224 | C (Cross-track): 1.513
    Collision Risk Index (CRI) 0.41
    X Position (km) 160.15 158.855
    Position Y (km) 3329.087 3330.598
    Position Z (km) 6306.253 6307.522
    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 7154.169 km
    Eccentricity (e) 0.000133 0.001994
    Inclination (i) 98.4004° 74.0287°
    RAAN 248.7705° 59.0271°
    Perigee Argument 84.4086° 95.1570°
    Mean Anomaly (M) 73.5571° 79.5777°
    Apogee 762.457 km 790.299 km
    Perigee 760.555 km 761.765 km
    Orbit Epoch 2026-10-27T07:17:28+0000 2026-10-27T02:25:17+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