PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-10:43:10
G01     127.9          10.8              -10.5 +/-   35.32     -28.8 +/-   35.32  0.030 / 0.040
G07     49.6           69.6                5.4 +/-    0.42       5.7 +/-    0.42  0.050 / 0.040
G08     50.1           38.4                3.4 +/-    1.32       5.0 +/-    1.32  0.030 / 0.050
G09     176.1          34.8                4.4 +/-    1.82       6.9 +/-    1.82  0.030 / 0.040
G11     117.8          34.8                6.7 +/-    0.99      10.7 +/-    0.99  0.120 / 0.230
G13     321.3          10.9               -5.1 +/-   17.06     -14.1 +/-   17.06  0.130 / 0.270
G17     199.1          15.3                3.5 +/-    2.53       8.7 +/-    2.53  0.250 / 0.410
G18     104.2          16.0                4.8 +/-    1.31      11.7 +/-    1.31  0.200 / 0.290
G28     273.9          52.1                4.1 +/-    1.17       5.1 +/-    1.17  0.110 / 0.480
G30     329.3          58.0                1.7 +/-    0.87       2.0 +/-    0.87  0.120 / 0.420