Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.420166E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-11-04T19:35:15+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 43926
    NORAD ID 43926
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ENVISAT IRIDIUM 169
    Time of Closest Approach 2026-11-05T10:26:28+0000
    Collision Probability (Pc) 1.420166E-6
    Conjunction Distance (km) 2.346 km
    Relative Speed (km/s) 8.48 km/s
    Conjunction Risk Parameters R (Radial): -2.326 | I (In-track): -0.246 | C (Cross-track): -0.174
    Collision Risk Index (CRI) 0.38
    X Position (km) 825.907 826.282
    Position Y (km) -1081.839 -1082.469
    Position Z (km) -7017.059 -7019.288
    Velocity X (km/s) -1.706 6.139
    Velocity Y (km/s) -7.202 -4.013
    Velocity Z (km/s) 0.91 1.342

    Orbital Parameters 国际轨道数据源

    Parameter ENVISAT IRIDIUM 169
    Semimajor Axis (a) 7139.638 km 7141.240 km
    Eccentricity (e) 0.000129 0.000210
    Inclination (i) 98.4024° 86.4212°
    RAAN 256.1686° 326.8664°
    Perigee Argument 83.2956° 99.8593°
    Mean Anomaly (M) 292.7507° 260.2842°
    Apogee 762.423 km 764.602 km
    Perigee 760.579 km 761.604 km
    Orbit Epoch 2026-11-03T20:31:12+0000 2026-11-03T18:44:48+0000

    ENVISAT & IRIDIUM 169 Collision Probability (Pc) Trend

    ENVISAT & IRIDIUM 169 Collision Probability (Pc) TrendNot Available

    ENVISAT & IRIDIUM 169 Miss Distance (Miss Distance) Trend

    ENVISAT & IRIDIUM 169 Miss Distance (Miss Distance) TrendNot Available

    ENVISATMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 169Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ENVISATCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 169Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ENVISAT

    No nearby objects data