Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.994048E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T11:34:01+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 28357
    NORAD ID 28357
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter OPS 7202 (DMSP 4A F3) SL-16 DEB
    Time of Closest Approach 2026-09-14T06:06:33+0000
    Collision Probability (Pc) 3.994048E-6
    Conjunction Distance (km) 1.764 km
    Relative Speed (km/s) 14.519 km/s
    Conjunction Risk Parameters R (Radial): -1.45 | I (In-track): 0.231 | C (Cross-track): 0.977
    Collision Risk Index (CRI) 0.47
    X Position (km) -146.297 -145.395
    Position Y (km) -3434.076 -3432.964
    Position Z (km) -6381.814 -6380.787
    Velocity X (km/s) -2.062 4.907
    Velocity Y (km/s) 6.266 -4.969
    Velocity Z (km/s) -3.346 2.654

    Orbital Parameters 国际轨道数据源

    Parameter OPS 7202 (DMSP 4A F3) SL-16 DEB
    Semimajor Axis (a) 7219.351 km 7364.899 km
    Eccentricity (e) 0.003903 0.020049
    Inclination (i) 98.5773° 71.0725°
    RAAN 103.1085° 308.5255°
    Perigee Argument 103.3058° 325.7067°
    Mean Anomaly (M) 257.2474° 102.9194°
    Apogee 869.394 km 1134.420 km
    Perigee 813.034 km 839.104 km
    Orbit Epoch 2026-09-13T12:00:06+0000 2026-09-13T13:17:29+0000

    OPS 7202 (DMSP 4A F3) & SL-16 DEB Collision Probability (Pc) Trend

    OPS 7202 (DMSP 4A F3) & SL-16 DEB Collision Probability (Pc) TrendNot Available

    OPS 7202 (DMSP 4A F3) & SL-16 DEB Miss Distance (Miss Distance) Trend

    OPS 7202 (DMSP 4A F3) & SL-16 DEB Miss Distance (Miss Distance) TrendNot Available

    OPS 7202 (DMSP 4A F3)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SL-16 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

    SL-16 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OPS 7202 (DMSP 4A F3)

    No nearby objects data