Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    8.134066E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T04:52:39+0800
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    1 Object 1

    AOE ID 4047
    NORAD ID 4047
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 42349
    NORAD ID 42349
    Object Type DEBRIS
    Country
    US US

    Conjunction Constraints

    Parameter OPS 1127 (DMSP 4B F3) NOAA 16 DEB
    Time of Closest Approach 2026-09-11T22:47:53+0000
    Collision Probability (Pc) 8.134066E-6
    Conjunction Distance (km) 1.406 km
    Relative Speed (km/s) 14.324 km/s
    Conjunction Risk Parameters R (Radial): 1.361 | I (In-track): 0.093 | C (Cross-track): -0.343
    Collision Risk Index (CRI) 0.53
    X Position (km) 1991.033 1991.102
    Position Y (km) -3374.315 -3375.132
    Position Z (km) 6019.808 6020.95
    Velocity X (km/s) 1.343 -4.822
    Velocity Y (km/s) -6.204 4.126
    Velocity Z (km/s) -3.881 3.894

    Orbital Parameters 国际轨道数据源

    Parameter OPS 1127 (DMSP 4B F3) NOAA 16 DEB
    Semimajor Axis (a) 7171.428 km 7184.322 km
    Eccentricity (e) 0.004403 0.000932
    Inclination (i) 98.4128° 98.6614°
    RAAN 107.0391° 312.5462°
    Perigee Argument 1.2907° 201.5653°
    Mean Anomaly (M) 358.8382° 158.5135°
    Apogee 824.865 km 812.883 km
    Perigee 761.717 km 799.487 km
    Orbit Epoch 2026-09-11T13:49:56+0000 2026-09-10T09:28:16+0000

    OPS 1127 (DMSP 4B F3) & NOAA 16 DEB Collision Probability (Pc) Trend

    OPS 1127 (DMSP 4B F3) & NOAA 16 DEB Collision Probability (Pc) TrendNot Available

    OPS 1127 (DMSP 4B F3) & NOAA 16 DEB Miss Distance (Miss Distance) Trend

    OPS 1127 (DMSP 4B F3) & NOAA 16 DEB Miss Distance (Miss Distance) TrendNot Available

    OPS 1127 (DMSP 4B F3)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 1127 (DMSP 4B F3)Collision Probability Trend

    Object 1 Probability TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 1127 (DMSP 4B F3)

    No nearby objects data