Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.251323E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-06T12:18:00+0800
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    1 Object 1

    AOE ID 42379
    NORAD ID 42379
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 67385
    NORAD ID 67385
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter NOAA 16 DEB CAPELLA-18 (ACADIA)
    Time of Closest Approach 2026-09-06T20:08:11+0000
    Collision Probability (Pc) 3.251323E-6
    Conjunction Distance (km) 1.871 km
    Relative Speed (km/s) 13.688 km/s
    Conjunction Risk Parameters R (Radial): -1.143 | I (In-track): -0.624 | C (Cross-track): 1.342
    Collision Risk Index (CRI) 0.45
    X Position (km) -56.141 -54.652
    Position Y (km) -2423.595 -2423.193
    Position Z (km) -6562.51 -6561.452
    Velocity X (km/s) -3.228 -3.103
    Velocity Y (km/s) 6.399 -6.437
    Velocity Z (km/s) -2.349 2.404

    Orbital Parameters 国际轨道数据源

    Parameter NOAA 16 DEB CAPELLA-18 (ACADIA)
    Semimajor Axis (a) 6994.124 km 6986.553 km
    Eccentricity (e) 0.001734 0.000150
    Inclination (i) 98.9165° 97.8065°
    RAAN 112.4158° 245.6637°
    Perigee Argument 191.5008° 95.4302°
    Mean Anomaly (M) 168.5810° 264.7085°
    Apogee 628.113 km 609.464 km
    Perigee 603.861 km 607.368 km
    Orbit Epoch 2026-09-05T13:53:01+0000 2026-09-05T13:45:53+0000

    NOAA 16 DEB & CAPELLA-18 (ACADIA) Collision Probability (Pc) Trend

    NOAA 16 DEB & CAPELLA-18 (ACADIA) Collision Probability (Pc) TrendNot Available

    NOAA 16 DEB & CAPELLA-18 (ACADIA) Miss Distance (Miss Distance) Trend

    NOAA 16 DEB & CAPELLA-18 (ACADIA) Miss Distance (Miss Distance) TrendNot Available

    NOAA 16 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CAPELLA-18 (ACADIA)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    NOAA 16 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    CAPELLA-18 (ACADIA)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with NOAA 16 DEB

    No nearby objects data