PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-00:27:40
G02     2.3            74.6                9.6 +/-    0.83       9.9 +/-    0.83  0.030 / 0.030
G05     160.5          39.4               12.8 +/-    1.41      18.8 +/-    1.41  0.030 / 0.030
G06     43.3           35.0                8.0 +/-    0.71      12.6 +/-    0.71  0.050 / 0.060
G12     299.0          76.3                8.7 +/-    0.65       8.9 +/-    0.65  0.080 / 0.070
G17     89.0           11.2               10.0 +/-    1.86      27.1 +/-    1.86  0.060 / 0.090
G19     79.0           25.4                9.9 +/-    1.16      19.2 +/-    1.16  0.070 / 0.110
G24     224.4          19.1               12.6 +/-    2.64      28.4 +/-    2.64  0.040 / 0.030
G25     316.3          32.8               10.1 +/-    1.54      16.7 +/-    1.54  0.030 / 0.040
G29     289.6          11.1                2.7 +/-   23.98       7.2 +/-   23.98  0.140 / 0.250