Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.402663E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T09:02:17+0800
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    1 Object 1

    Name NOAA 4
    AOE ID 7529
    NORAD ID 7529
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 26010
    NORAD ID 26010
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter NOAA 4 SL-14 DEB
    Time of Closest Approach 2026-10-20T01:53:00+0000
    Collision Probability (Pc) 1.402663E-6
    Conjunction Distance (km) 2.216 km
    Relative Speed (km/s) 6.84 km/s
    Conjunction Risk Parameters R (Radial): -0.125 | I (In-track): -1.937 | C (Cross-track): 1.067
    Collision Risk Index (CRI) 0.38
    X Position (km) -132.295 -131.9
    Position Y (km) 2756.135 2754.144
    Position Z (km) -7331.608 -7332.497
    Velocity X (km/s) 4.462 -2.267
    Velocity Y (km/s) -5.177 -6.352
    Velocity Z (km/s) -2.021 -2.354

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 4 SL-14 DEB
    Semimajor Axis (a) 7829.248 km 7864.604 km
    Eccentricity (e) 0.000893 0.004953
    Inclination (i) 102.0011° 82.7320°
    RAAN 306.3797° 253.3559°
    Perigee Argument 321.9177° 239.9854°
    Mean Anomaly (M) 49.0626° 274.3347°
    Apogee 1458.105 km 1525.423 km
    Perigee 1444.117 km 1447.511 km
    Orbit Epoch 2026-10-19T07:21:05+0000 2026-10-19T08:00:25+0000

    NOAA 4 & SL-14 DEB Collision Probability (Pc) Trend

    NOAA 4 & SL-14 DEB Collision Probability (Pc) TrendNot Available

    NOAA 4 & SL-14 DEB Miss Distance (Miss Distance) Trend

    NOAA 4 & SL-14 DEB Miss Distance (Miss Distance) TrendNot Available

    NOAA 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SL-14 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    SL-14 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 4

    No nearby objects data