Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.871635E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-23T17:49:24+0800
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    1 Object 1

    AOE ID 6787
    NORAD ID 6787
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 31440
    NORAD ID 31440
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter OPS 8364 (DMSP 4) FENGYUN 1C DEB
    Time of Closest Approach 2026-10-25T13:36:38+0000
    Collision Probability (Pc) 3.871635E-4
    Conjunction Distance (km) 0.349 km
    Relative Speed (km/s) 13.213 km/s
    Conjunction Risk Parameters R (Radial): 0.318 | I (In-track): -0.059 | C (Cross-track): -0.128
    Collision Risk Index (CRI) 0.87
    X Position (km) -2293.778 -2293.858
    Position Y (km) -432.431 -432.59
    Position Z (km) -6771.732 -6772.031
    Velocity X (km/s) -6.784 5.463
    Velocity Y (km/s) 2.18 4.565
    Velocity Z (km/s) 2.18 -2.167

    Orbital Parameters 国际轨道数据源

    Parameter OPS 8364 (DMSP 4) FENGYUN 1C DEB
    Semimajor Axis (a) 7157.367 km 7138.467 km
    Eccentricity (e) 0.002616 0.003923
    Inclination (i) 98.5438° 98.7446°
    RAAN 161.9394° 34.3160°
    Perigee Argument 20.0629° 132.8056°
    Mean Anomaly (M) 340.1578° 227.6440°
    Apogee 797.956 km 788.335 km
    Perigee 760.504 km 732.325 km
    Orbit Epoch 2026-10-22T15:36:14+0000 2026-10-22T17:42:43+0000

    OPS 8364 (DMSP 4) & FENGYUN 1C DEB Collision Probability (Pc) Trend

    OPS 8364 (DMSP 4) & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    OPS 8364 (DMSP 4) & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    OPS 8364 (DMSP 4) & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    OPS 8364 (DMSP 4)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OPS 8364 (DMSP 4)Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 8364 (DMSP 4)

    No nearby objects data