Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.538887E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T11:04:00+0800
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    1 Object 1

    Name BB4
    AOE ID 57757
    NORAD ID 57757
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 68921
    NORAD ID 68921
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter BB4 KUIPER-00386
    Time of Closest Approach 2026-09-10T07:47:23+0000
    Collision Probability (Pc) 1.538887E-6
    Conjunction Distance (km) 2.553 km
    Relative Speed (km/s) 12.596 km/s
    Conjunction Risk Parameters R (Radial): 2.237 | I (In-track): -0.675 | C (Cross-track): -1.027
    Collision Risk Index (CRI) 0.39
    X Position (km) -980.36 -978.976
    Position Y (km) -5215.756 -5214.592
    Position Z (km) -4586.569 -4584.768
    Velocity X (km/s) 0.641 6.567
    Velocity Y (km/s) -5.017 1.666
    Velocity Z (km/s) 5.581 -3.3

    Orbital Parameters 国际轨道数据源

    Parameter BB4 KUIPER-00386
    Semimajor Axis (a) 7004.157 km 7007.667 km
    Eccentricity (e) 0.000967 0.000052
    Inclination (i) 81.0023° 51.8990°
    RAAN 269.2618° 39.8597°
    Perigee Argument 87.6777° 107.9686°
    Mean Anomaly (M) 272.5539° 252.1333°
    Apogee 632.794 km 629.897 km
    Perigee 619.246 km 629.163 km
    Orbit Epoch 2026-09-08T12:11:53+0000 2026-09-09T14:31:12+0000

    BB4 & KUIPER-00386 Collision Probability (Pc) Trend

    BB4 & KUIPER-00386 Collision Probability (Pc) TrendNot Available

    BB4 & KUIPER-00386 Miss Distance (Miss Distance) Trend

    BB4 & KUIPER-00386 Miss Distance (Miss Distance) TrendNot Available

    BB4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00386Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    BB4Collision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00386Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with BB4

    No nearby objects data