Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.276354E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T03:58:44+0800
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    1 Object 1

    Name NOAA 15
    AOE ID 25338
    NORAD ID 25338
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 35701
    NORAD ID 35701
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter NOAA 15 COSMOS 2251 DEB
    Time of Closest Approach 2026-10-26T03:22:28+0000
    Collision Probability (Pc) 3.276354E-5
    Conjunction Distance (km) 0.948 km
    Relative Speed (km/s) 14.909 km/s
    Conjunction Risk Parameters R (Radial): 0.723 | I (In-track): -0.071 | C (Cross-track): 0.609
    Collision Risk Index (CRI) 0.65
    X Position (km) 4135.959 4135.927
    Position Y (km) -2908.76 -2909.447
    Position Z (km) -5096.615 -5097.268
    Velocity X (km/s) 3.327 -2.406
    Velocity Y (km/s) -4.252 5.294
    Velocity Z (km/s) 5.133 -4.781

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 15 COSMOS 2251 DEB
    Semimajor Axis (a) 7179.316 km 7335.178 km
    Eccentricity (e) 0.000968 0.028747
    Inclination (i) 98.5022° 74.0005°
    RAAN 314.4466° 135.2155°
    Perigee Argument 334.8779° 276.6939°
    Mean Anomaly (M) 25.1930° 80.1549°
    Apogee 808.127 km 1167.902 km
    Perigee 794.231 km 746.180 km
    Orbit Epoch 2026-10-24T07:50:28+0000 2026-10-21T21:29:04+0000

    NOAA 15 & COSMOS 2251 DEB Collision Probability (Pc) Trend

    NOAA 15 & COSMOS 2251 DEB Collision Probability (Pc) TrendNot Available

    NOAA 15 & COSMOS 2251 DEB Miss Distance (Miss Distance) Trend

    NOAA 15 & COSMOS 2251 DEB Miss Distance (Miss Distance) TrendNot Available

    NOAA 15Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 15Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 15

    No nearby objects data