Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.006796E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T06:55:22+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 41520
    NORAD ID 41520
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55315
    NORAD ID 55315
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 16 DEB STARLINK-4623
    Time of Closest Approach 2026-10-21T05:20:20+0000
    Collision Probability (Pc) 2.006796E-6
    Conjunction Distance (km) 2.059 km
    Relative Speed (km/s) 9.414 km/s
    Conjunction Risk Parameters R (Radial): -1.797 | I (In-track): 0.788 | C (Cross-track): 0.621
    Collision Risk Index (CRI) 0.41
    X Position (km) -1584.648 -1584.336
    Position Y (km) 2425.145 2425.203
    Position Z (km) -6320.779 -6322.812
    Velocity X (km/s) -1.155 -7.346
    Velocity Y (km/s) 6.883 -0.118
    Velocity Z (km/s) 2.927 1.795

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 16 DEB STARLINK-4623
    Semimajor Axis (a) 6957.115 km 6950.192 km
    Eccentricity (e) 0.001669 0.000294
    Inclination (i) 98.8582° 69.9976°
    RAAN 102.3751° 178.6427°
    Perigee Argument 276.7143° 270.8840°
    Mean Anomaly (M) 83.2176° 89.1982°
    Apogee 590.586 km 574.101 km
    Perigee 567.370 km 570.009 km
    Orbit Epoch 2026-10-20T10:22:34+0000 2026-10-20T02:26:12+0000

    NOAA 16 DEB & STARLINK-4623 Collision Probability (Pc) Trend

    NOAA 16 DEB & STARLINK-4623 Collision Probability (Pc) TrendNot Available

    NOAA 16 DEB & STARLINK-4623 Miss Distance (Miss Distance) Trend

    NOAA 16 DEB & STARLINK-4623 Miss Distance (Miss Distance) TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4623Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4623Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 16 DEB

    No nearby objects data