Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.971375E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T22:24:00+0800
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    1 Object 1

    AOE ID 39270
    NORAD ID 39270
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 39907
    NORAD ID 39907
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter POPACS 3 SL-16 DEB
    Time of Closest Approach 2026-09-12T11:18:45+0000
    Collision Probability (Pc) 5.971375E-6
    Conjunction Distance (km) 1.524 km
    Relative Speed (km/s) 13.442 km/s
    Conjunction Risk Parameters R (Radial): -1.456 | I (In-track): 0.2 | C (Cross-track): -0.397
    Collision Risk Index (CRI) 0.51
    X Position (km) -2757.083 -2756.941
    Position Y (km) 4066.688 4065.707
    Position Z (km) -5541.048 -5539.891
    Velocity X (km/s) -4.401 -0.287
    Velocity Y (km/s) 3.483 -5.951
    Velocity Z (km/s) 4.451 -4.194

    Orbital Parameters 国际轨道数据源

    Parameter POPACS 3 SL-16 DEB
    Semimajor Axis (a) 7079.822 km 7307.396 km
    Eccentricity (e) 0.054642 0.012818
    Inclination (i) 81.0016° 70.9917°
    RAAN 135.9111° 285.2730°
    Perigee Argument 167.7145° 40.2449°
    Mean Anomaly (M) 193.8034° 320.8063°
    Apogee 1088.543 km 1022.925 km
    Perigee 314.827 km 835.593 km
    Orbit Epoch 2026-09-11T02:36:20+0000 2026-09-10T11:33:47+0000

    POPACS 3 & SL-16 DEB Collision Probability (Pc) Trend

    POPACS 3 & SL-16 DEB Collision Probability (Pc) TrendNot Available

    POPACS 3 & SL-16 DEB Miss Distance (Miss Distance) Trend

    POPACS 3 & SL-16 DEB Miss Distance (Miss Distance) TrendNot Available

    POPACS 3Miss 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

    POPACS 3Collision Probability Trend

    Object 1 Probability TrendNot Available

    SL-16 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with POPACS 3

    No nearby objects data