Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.618385E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T22:24:21+0800
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    1 Object 1

    Name NOAA 18
    AOE ID 28654
    NORAD ID 28654
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54898
    NORAD ID 54898
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter NOAA 18 CZ-6A DEB
    Time of Closest Approach 2026-10-25T00:16:45+0000
    Collision Probability (Pc) 3.618385E-6
    Conjunction Distance (km) 1.699 km
    Relative Speed (km/s) 10.563 km/s
    Conjunction Risk Parameters R (Radial): 0.638 | I (In-track): -1.107 | C (Cross-track): -1.12
    Collision Risk Index (CRI) 0.46
    X Position (km) -792.749 -794.043
    Position Y (km) -1356.2 -1355.293
    Position Z (km) 7035.888 7035.264
    Velocity X (km/s) -7.118 -1.957
    Velocity Y (km/s) -1.82 7.09
    Velocity Z (km/s) -1.158 1.194

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 18 CZ-6A DEB
    Semimajor Axis (a) 7224.706 km 7248.661 km
    Eccentricity (e) 0.001496 0.008103
    Inclination (i) 98.8026° 98.8645°
    RAAN 14.9579° 282.4999°
    Perigee Argument 141.3082° 28.9245°
    Mean Anomaly (M) 218.9165° 331.6379°
    Apogee 857.378 km 929.258 km
    Perigee 835.760 km 811.790 km
    Orbit Epoch 2026-10-24T05:07:42+0000 2026-10-23T12:03:14+0000

    NOAA 18 & CZ-6A DEB Collision Probability (Pc) Trend

    NOAA 18 & CZ-6A DEB Collision Probability (Pc) TrendNot Available

    NOAA 18 & CZ-6A DEB Miss Distance (Miss Distance) Trend

    NOAA 18 & CZ-6A DEB Miss Distance (Miss Distance) TrendNot Available

    NOAA 18Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CZ-6A DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 18Collision Probability Trend

    Object 1 Probability TrendNot Available

    CZ-6A DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 18

    No nearby objects data