PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-14:12:30
G01     87.4           32.1                8.6 +/-    0.77      14.5 +/-    0.77  0.060 / 0.120
G07     127.6          40.5                9.7 +/-    1.03      14.1 +/-    1.03  0.050 / 0.120
G11     64.7           36.3                8.1 +/-    0.73      12.6 +/-    0.73  0.030 / 0.030
G13     294.3          35.3                9.5 +/-    1.18      15.1 +/-    1.18  0.030 / 0.030
G17     215.8          58.4               10.8 +/-    0.80      12.5 +/-    0.80  0.080 / 0.110
G19     215.4          30.8                9.6 +/-    1.03      16.4 +/-    1.03  0.080 / 0.110
G28     353.5          61.4                8.5 +/-    1.05       9.6 +/-    1.05  0.030 / 0.070
G30     104.8          76.6                9.9 +/-    0.38      10.1 +/-    0.38  0.050 / 0.060