Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.128871E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T13:58:00+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 61425
    NORAD ID 61425
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter NOAA 18 CZ-6A DEB
    Time of Closest Approach 2026-10-30T11:53:36+0000
    Collision Probability (Pc) 2.128871E-6
    Conjunction Distance (km) 2.18 km
    Relative Speed (km/s) 12.853 km/s
    Conjunction Risk Parameters R (Radial): 2.159 | I (In-track): 0.162 | C (Cross-track): 0.255
    Collision Risk Index (CRI) 0.42
    X Position (km) 81.525 81.791
    Position Y (km) 1217.329 1217.514
    Position Z (km) -7137.946 -7140.101
    Velocity X (km/s) 6.918 -1.245
    Velocity Y (km/s) 2.59 -7.177
    Velocity Z (km/s) 0.515 -1.269

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 18 CZ-6A DEB
    Semimajor Axis (a) 7224.704 km 7208.729 km
    Eccentricity (e) 0.001508 0.005538
    Inclination (i) 98.8022° 89.0076°
    RAAN 18.6502° 260.6264°
    Perigee Argument 131.2391° 135.0900°
    Mean Anomaly (M) 229.0084° 225.4789°
    Apogee 857.465 km 870.512 km
    Perigee 835.669 km 790.672 km
    Orbit Epoch 2026-10-27T23:09:08+0000 2026-10-27T21:43:26+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