PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-16:58:10
G01     127.3          10.6              -11.9 +/-   40.48     -32.8 +/-   40.48  0.090 / 0.090
G07     65.2           66.3                8.2 +/-    0.35       8.8 +/-    0.35  0.050 / 0.070
G08     51.4           40.4                8.7 +/-    0.38      12.6 +/-    0.38  0.030 / 0.050
G09     179.1          38.8               12.3 +/-    1.66      18.2 +/-    1.66  0.040 / 0.050
G11     118.3          35.4               10.6 +/-    1.09      16.7 +/-    1.09  0.070 / 0.120
G13     321.0          11.6                1.2 +/-   23.64       3.2 +/-   23.64  0.060 / 0.130
G17     199.4          13.6               10.5 +/-    3.07      27.0 +/-    3.07  0.040 / 0.060
G18     102.9          16.1                9.9 +/-    1.73      24.0 +/-    1.73  0.040 / 0.060
G28     269.4          48.4               10.5 +/-    2.06      13.5 +/-    2.06  0.060 / 0.080
G30     334.8          61.7                9.2 +/-    0.92      10.3 +/-    0.92  0.070 / 0.080