PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-14:12:40
G01     116.7          19.4                9.0 +/-    2.24      20.1 +/-    2.24  0.100 / 0.310
G07     90.7           62.0                7.0 +/-    0.65       7.8 +/-    0.65  0.100 / 0.370
G08     43.7           27.6                4.5 +/-    2.12       8.3 +/-    2.12  0.040 / 0.040
G09     175.4          22.3                8.5 +/-    1.53      17.7 +/-    1.53  0.040 / 0.070
G11     100.3          39.1                7.2 +/-    0.66      10.7 +/-    0.66  0.070 / 0.110
G13     317.5          19.5                5.8 +/-    1.15      12.9 +/-    1.15  0.070 / 0.120
G17     201.6          29.4               10.1 +/-    1.13      17.9 +/-    1.13  0.110 / 0.250
G28     297.4          58.1                6.7 +/-    1.24       7.7 +/-    1.24  0.170 / 0.200
G30     346.2          68.5                5.5 +/-    0.86       5.8 +/-    0.86  0.030 / 0.040