Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.254465E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T23:51:53+0800
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    1 Object 1

    AOE ID 48722
    NORAD ID 48722
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63248
    NORAD ID 63248
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 17 DEB LEMUR 2 LIA-MARTIN
    Time of Closest Approach 2026-10-21T20:15:30+0000
    Collision Probability (Pc) 2.254465E-6
    Conjunction Distance (km) 2.207 km
    Relative Speed (km/s) 14.752 km/s
    Conjunction Risk Parameters R (Radial): 1.225 | I (In-track): -0.413 | C (Cross-track): 1.788
    Collision Risk Index (CRI) 0.42
    X Position (km) -4301.288 -4302.218
    Position Y (km) 341.062 339.295
    Position Z (km) 5437.916 5438.855
    Velocity X (km/s) -5.596 5.914
    Velocity Y (km/s) 2.291 1.166
    Velocity Z (km/s) -4.567 4.591

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 17 DEB LEMUR 2 LIA-MARTIN
    Semimajor Axis (a) 6946.679 km 6949.107 km
    Eccentricity (e) 0.000758 0.000418
    Inclination (i) 98.6875° 97.6693°
    RAAN 342.2471° 183.6174°
    Perigee Argument 225.9400° 121.2052°
    Mean Anomaly (M) 134.1197° 238.9581°
    Apogee 573.809 km 573.875 km
    Perigee 563.275 km 568.065 km
    Orbit Epoch 2026-10-19T22:50:59+0000 2026-10-20T03:57:59+0000

    NOAA 17 DEB & LEMUR 2 LIA-MARTIN Collision Probability (Pc) Trend

    NOAA 17 DEB & LEMUR 2 LIA-MARTIN Collision Probability (Pc) TrendNot Available

    NOAA 17 DEB & LEMUR 2 LIA-MARTIN Miss Distance (Miss Distance) Trend

    NOAA 17 DEB & LEMUR 2 LIA-MARTIN Miss Distance (Miss Distance) TrendNot Available

    NOAA 17 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LEMUR 2 LIA-MARTINMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 17 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    LEMUR 2 LIA-MARTINCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 17 DEB

    No nearby objects data