Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.831486E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T11:33:59+0800
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    1 Object 1

    AOE ID 2920
    NORAD ID 2920
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 31515
    NORAD ID 31515
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter OPS 7202 (DMSP 4A F3) FENGYUN 1C DEB
    Time of Closest Approach 2026-09-16T13:26:49+0000
    Collision Probability (Pc) 1.831486E-6
    Conjunction Distance (km) 2.327 km
    Relative Speed (km/s) 12.626 km/s
    Conjunction Risk Parameters R (Radial): 1.9 | I (In-track): -0.711 | C (Cross-track): 1.14
    Collision Risk Index (CRI) 0.4
    X Position (km) 1486.481 1487.791
    Position Y (km) -1407.35 -1406.74
    Position Z (km) 6886.714 6888.537
    Velocity X (km/s) 1.739 -7.153
    Velocity Y (km/s) -7.028 1.187
    Velocity Z (km/s) -1.803 1.78

    Orbital Parameters 国际轨道数据源

    Parameter OPS 7202 (DMSP 4A F3) FENGYUN 1C DEB
    Semimajor Axis (a) 7219.351 km 7233.064 km
    Eccentricity (e) 0.003903 0.005487
    Inclination (i) 98.5773° 98.8896°
    RAAN 103.1085° 343.9396°
    Perigee Argument 103.3058° 93.3065°
    Mean Anomaly (M) 257.2474° 267.4385°
    Apogee 869.394 km 894.617 km
    Perigee 813.034 km 815.237 km
    Orbit Epoch 2026-09-13T12:00:06+0000 2026-09-12T01:53:48+0000

    OPS 7202 (DMSP 4A F3) & FENGYUN 1C DEB Collision Probability (Pc) Trend

    OPS 7202 (DMSP 4A F3) & FENGYUN 1C DEB Collision Probability (Pc) TrendNot Available

    OPS 7202 (DMSP 4A F3) & FENGYUN 1C DEB Miss Distance (Miss Distance) Trend

    OPS 7202 (DMSP 4A F3) & FENGYUN 1C DEB Miss Distance (Miss Distance) TrendNot Available

    OPS 7202 (DMSP 4A F3)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 7202 (DMSP 4A F3)Collision Probability Trend

    Object 1 Probability TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 7202 (DMSP 4A F3)

    No nearby objects data