Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    6.070165E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T08:12:37+0800
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    1 Object 1

    AOE ID 55861
    NORAD ID 55861
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 62621
    NORAD ID 62621
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter SHIYAN 19 (SY-19) FLOCK 4G 13
    Time of Closest Approach 2026-09-15T20:50:09+0000
    Collision Probability (Pc) 6.070165E-5
    Conjunction Distance (km) 0.775 km
    Relative Speed (km/s) 14.012 km/s
    Conjunction Risk Parameters R (Radial): -0.742 | I (In-track): 0.08 | C (Cross-track): -0.205
    Collision Risk Index (CRI) 0.71
    X Position (km) 1665.421 1665.093
    Position Y (km) -1316.326 -1316.348
    Position Z (km) 6414.708 6414.007
    Velocity X (km/s) 3.274 -7.167
    Velocity Y (km/s) -6.59 1.658
    Velocity Z (km/s) -2.193 2.197

    Orbital Parameters 国际轨道数据源

    Parameter SHIYAN 19 (SY-19) FLOCK 4G 13
    Semimajor Axis (a) 6764.827 km 6762.155 km
    Eccentricity (e) 0.000549 0.000307
    Inclination (i) 97.3780° 97.3874°
    RAAN 117.3393° 343.0045°
    Perigee Argument 33.4737° 277.5686°
    Mean Anomaly (M) 326.6865° 82.5223°
    Apogee 390.401 km 386.095 km
    Perigee 382.979 km 381.941 km
    Orbit Epoch 2026-09-14T15:08:16+0000 2026-09-14T04:32:05+0000

    SHIYAN 19 (SY-19) & FLOCK 4G 13 Collision Probability (Pc) Trend

    SHIYAN 19 (SY-19) & FLOCK 4G 13 Collision Probability (Pc) TrendNot Available

    SHIYAN 19 (SY-19) & FLOCK 4G 13 Miss Distance (Miss Distance) Trend

    SHIYAN 19 (SY-19) & FLOCK 4G 13 Miss Distance (Miss Distance) TrendNot Available

    SHIYAN 19 (SY-19)Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4G 13Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    SHIYAN 19 (SY-19)Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4G 13Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with SHIYAN 19 (SY-19)

    No nearby objects data