PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-13:42:40
G01     125.4          12.0                7.6 +/-    2.05      20.3 +/-    2.05  0.040 / 0.040
G07     66.6           66.9                7.8 +/-    0.67       8.4 +/-    0.67  0.030 / 0.050
G08     50.9           40.6                6.9 +/-    0.84      10.0 +/-    0.84  0.060 / 0.080
G09     178.6          36.4               10.9 +/-    0.82      16.9 +/-    0.82  0.060 / 0.090
G11     117.0          36.7                8.4 +/-    0.78      12.9 +/-    0.78  0.060 / 0.110
G13     320.5          13.4                5.1 +/-    1.77      13.0 +/-    1.77  0.060 / 0.130
G17     200.2          13.7                6.0 +/-    1.01      15.4 +/-    1.01  0.100 / 0.350
G18     101.6          17.1                7.5 +/-    1.41      17.7 +/-    1.41  0.100 / 0.430
G28     271.3          48.9                7.0 +/-    0.98       8.9 +/-    0.98  0.080 / 0.320
G30     337.1          63.3                7.2 +/-    0.62       7.9 +/-    0.62  0.180 / 0.310