Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.549076E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T12:44:56+0800
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    1 Object 1

    AOE ID 41249
    NORAD ID 41249
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66315
    NORAD ID 66315
    Object Type PAYLOAD
    Country
    ESA ESA

    Conjunction Constraints

    Parameter NOAA 16 DEB SENTINEL-1D
    Time of Closest Approach 2026-10-18T04:04:50+0000
    Collision Probability (Pc) 1.549076E-6
    Conjunction Distance (km) 2.573 km
    Relative Speed (km/s) 13.029 km/s
    Conjunction Risk Parameters R (Radial): -1.02 | I (In-track): 1.174 | C (Cross-track): -2.048
    Collision Risk Index (CRI) 0.39
    X Position (km) 1728.742 1727.136
    Position Y (km) -1264.391 -1266.141
    Position Z (km) -6751.562 -6750.575
    Velocity X (km/s) -7.218 2.995
    Velocity Y (km/s) 0.506 -6.57
    Velocity Z (km/s) -1.922 1.999

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 16 DEB SENTINEL-1D
    Semimajor Axis (a) 7065.334 km 7073.901 km
    Eccentricity (e) 0.003153 0.000137
    Inclination (i) 98.9464° 98.1821°
    RAAN 171.9119° 295.5821°
    Perigee Argument 18.0927° 91.0727°
    Mean Anomaly (M) 342.1387° 269.0630°
    Apogee 709.475 km 696.735 km
    Perigee 664.919 km 694.793 km
    Orbit Epoch 2026-10-16T14:46:43+0000 2026-10-16T22:47:53+0000

    NOAA 16 DEB & SENTINEL-1D Collision Probability (Pc) Trend

    NOAA 16 DEB & SENTINEL-1D Collision Probability (Pc) TrendNot Available

    NOAA 16 DEB & SENTINEL-1D Miss Distance (Miss Distance) Trend

    NOAA 16 DEB & SENTINEL-1D Miss Distance (Miss Distance) TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SENTINEL-1DMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SENTINEL-1DCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 16 DEB

    No nearby objects data