PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-22:12:30
G02     217.8          62.7                9.4 +/-    1.42      10.5 +/-    1.42  0.120 / 0.270
G06     55.9           75.0                8.5 +/-    0.46       8.8 +/-    0.46  0.110 / 0.300
G12     318.0          35.1                7.4 +/-    1.75      11.7 +/-    1.75  0.070 / 0.070
G17     58.6           31.0                9.0 +/-    2.08      15.3 +/-    2.08  0.100 / 0.090
G19     41.7           47.5                8.8 +/-    0.66      11.4 +/-    0.66  0.060 / 0.050
G24     261.7          41.1               11.3 +/-    3.82      16.1 +/-    3.82  0.050 / 0.040
G28     122.5          16.5               12.1 +/-    2.60      29.1 +/-    2.60  0.080 / 0.110