PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-17:28:00
G01     125.8          11.9               13.4 +/-    2.57      35.9 +/-    2.57  0.030 / 0.040
G07     70.7           65.5               11.7 +/-    0.44      12.7 +/-    0.44  0.030 / 0.030
G08     49.7           38.6                9.8 +/-    1.13      14.5 +/-    1.13  0.030 / 0.030
G09     178.9          36.6               11.6 +/-    0.58      17.8 +/-    0.58  0.040 / 0.030
G11     116.1          36.5               12.4 +/-    1.53      19.2 +/-    1.53  0.080 / 0.120
G13     320.6          13.2                7.0 +/-    8.18      18.2 +/-    8.18  0.070 / 0.120
G17     199.5          15.7               10.5 +/-    1.12      25.6 +/-    1.12  0.080 / 0.420
G18     100.9          17.0               11.5 +/-    1.25      27.1 +/-    1.25  0.190 / 0.470
G28     272.2          49.7               10.2 +/-    2.38      12.9 +/-    2.38  0.110 / 0.290
G30     337.0          63.2               10.7 +/-    0.60      11.8 +/-    0.60  0.110 / 0.260