Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    8.58934E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T13:57:58+0800
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    1 Object 1

    AOE ID 13817
    NORAD ID 13817
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

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

    Conjunction Constraints

    Parameter COSMOS 1275 DEB NOAA 18
    Time of Closest Approach 2026-10-28T08:54:28+0000
    Collision Probability (Pc) 8.58934E-6
    Conjunction Distance (km) 1.386 km
    Relative Speed (km/s) 14.445 km/s
    Conjunction Risk Parameters R (Radial): 1.379 | I (In-track): 0.024 | C (Cross-track): -0.14
    Collision Risk Index (CRI) 0.54
    X Position (km) -597.697 -597.56
    Position Y (km) 966.11 965.787
    Position Z (km) -7151.825 -7150.484
    Velocity X (km/s) -7.333 6.983
    Velocity Y (km/s) 0.81 2.454
    Velocity Z (km/s) 0.737 -0.26

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1275 DEB NOAA 18
    Semimajor Axis (a) 7243.768 km 7224.704 km
    Eccentricity (e) 0.002318 0.001508
    Inclination (i) 82.9428° 98.8022°
    RAAN 173.3661° 18.6502°
    Perigee Argument 332.0961° 131.2391°
    Mean Anomaly (M) 27.8969° 229.0084°
    Apogee 882.419 km 857.465 km
    Perigee 848.843 km 835.669 km
    Orbit Epoch 2026-10-27T21:22:09+0000 2026-10-27T23:09:08+0000

    COSMOS 1275 DEB & NOAA 18 Collision Probability (Pc) Trend

    COSMOS 1275 DEB & NOAA 18 Collision Probability (Pc) TrendNot Available

    COSMOS 1275 DEB & NOAA 18 Miss Distance (Miss Distance) Trend

    COSMOS 1275 DEB & NOAA 18 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1275 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NOAA 18Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 1275 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    NOAA 18Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1275 DEB

    No nearby objects data