Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    3.886563E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-16T07:44:05+0800
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    1 Object 1

    AOE ID 39634
    NORAD ID 39634
    Object Type PAYLOAD
    Country
    ESA ESA
    ← VS →

    2 Object 2

    AOE ID 62261
    NORAD ID 62261
    Object Type PAYLOAD
    Country
    ESA ESA

    Conjunction Constraints

    Parameter SENTINEL 1A SENTINEL 1C
    Time of Closest Approach 2026-10-21T12:49:25+0000
    Collision Probability (Pc) 3.886563E-7
    Conjunction Distance (km) 1.978 km
    Relative Speed (km/s) 0.005 km/s
    Conjunction Risk Parameters R (Radial): -1.976 | I (In-track): 0.017 | C (Cross-track): 0.038
    Collision Risk Index (CRI) 0.27
    X Position (km) -2911.197 -2911.974
    Position Y (km) 3475.269 3476.248
    Position Z (km) 5421.056 5422.588
    Velocity X (km/s) -2.338 -2.333
    Velocity Y (km/s) 5.379 5.38
    Velocity Z (km/s) -4.692 -4.69

    Orbital Parameters 国际轨道数据源

    Parameter SENTINEL 1A SENTINEL 1C
    Semimajor Axis (a) 7071.831 km 7073.894 km
    Eccentricity (e) 0.000140 0.000133
    Inclination (i) 98.1591° 98.1821°
    RAAN 294.2516° 293.7367°
    Perigee Argument 80.0786° 89.3413°
    Mean Anomaly (M) 280.0572° 270.7939°
    Apogee 694.686 km 696.698 km
    Perigee 692.702 km 694.816 km
    Orbit Epoch 2026-10-15T14:45:55+0000 2026-10-15T03:10:59+0000

    SENTINEL 1A & SENTINEL 1C Collision Probability (Pc) Trend

    SENTINEL 1A & SENTINEL 1C Collision Probability (Pc) TrendNot Available

    SENTINEL 1A & SENTINEL 1C Miss Distance (Miss Distance) Trend

    SENTINEL 1A & SENTINEL 1C Miss Distance (Miss Distance) TrendNot Available

    SENTINEL 1AMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SENTINEL 1CMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SENTINEL 1ACollision Probability Trend

    Object 1 Probability TrendNot Available

    SENTINEL 1CCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SENTINEL 1A

    No nearby objects data