Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.131225E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-01T12:34:00+0800
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    1 Object 1

    Name NOAA 9
    AOE ID 15427
    NORAD ID 15427
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 28989
    NORAD ID 28989
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter NOAA 9 METEOR 2-17 DEB
    Time of Closest Approach 2026-10-01T17:52:31+0000
    Collision Probability (Pc) 2.131225E-6
    Conjunction Distance (km) 2.27 km
    Relative Speed (km/s) 14.894 km/s
    Conjunction Risk Parameters R (Radial): -1.894 | I (In-track): 0.033 | C (Cross-track): -1.248
    Collision Risk Index (CRI) 0.42
    X Position (km) 2513.215 2514.907
    Position Y (km) -5040.894 -5041.54
    Position Z (km) 4484.004 4485.372
    Velocity X (km/s) -3.377 3.159
    Velocity Y (km/s) 3.402 -3.557
    Velocity Z (km/s) 5.7 -5.731

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 9 METEOR 2-17 DEB
    Semimajor Axis (a) 7213.347 km 7219.888 km
    Eccentricity (e) 0.001538 0.002946
    Inclination (i) 99.0927° 82.5207°
    RAAN 302.9124° 123.7248°
    Perigee Argument 53.2032° 102.1251°
    Mean Anomaly (M) 120.1451° 258.3229°
    Apogee 846.308 km 863.019 km
    Perigee 824.112 km 820.483 km
    Orbit Epoch 2026-09-30T20:28:40+0000 2026-09-30T07:16:34+0000

    NOAA 9 & METEOR 2-17 DEB Collision Probability (Pc) Trend

    NOAA 9 & METEOR 2-17 DEB Collision Probability (Pc) TrendNot Available

    NOAA 9 & METEOR 2-17 DEB Miss Distance (Miss Distance) Trend

    NOAA 9 & METEOR 2-17 DEB Miss Distance (Miss Distance) TrendNot Available

    NOAA 9Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    METEOR 2-17 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 9Collision Probability Trend

    Object 1 Probability TrendNot Available

    METEOR 2-17 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 9

    No nearby objects data