PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/06-21:12:50
G01     46.6           22.7               12.4 +/-    1.73      25.6 +/-    1.73  0.060 / 0.160
G06     176.4          30.2               15.3 +/-    1.45      26.7 +/-    1.45  0.070 / 0.140
G11     44.1           12.3                9.8 +/-    3.00      25.9 +/-    3.00  0.260 / 0.290
G13     246.2          27.8               14.6 +/-    1.80      26.9 +/-    1.80  0.390 / 0.450
G15     279.6          14.8               11.0 +/-    1.85      27.4 +/-    1.85  0.070 / 0.080
G17     317.8          76.9               13.5 +/-    0.74      13.8 +/-    0.74  0.080 / 0.090
G19     254.0          62.3               12.8 +/-    0.39      14.3 +/-    0.39  0.080 / 0.230
G24     318.6          11.9               -8.5 +/-   34.29     -22.6 +/-   34.29  0.140 / 0.250
G28     59.6           50.8               13.5 +/-    0.89      16.9 +/-    0.89  0.040 / 0.050
G30     151.4          35.6               15.4 +/-    0.80      24.3 +/-    0.80  0.030 / 0.050