PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-00:57:40
G02     4.3            74.0                8.2 +/-    0.31       8.5 +/-    0.31  0.020 / 0.030
G05     160.1          40.1               14.4 +/-    0.96      20.9 +/-    0.96  0.020 / 0.030
G06     43.4           34.7                7.5 +/-    1.18      12.1 +/-    1.18  0.130 / 0.330
G12     297.3          76.5               11.1 +/-    0.74      11.4 +/-    0.74  0.170 / 0.220
G17     89.4           11.1               10.1 +/-    2.15      27.6 +/-    2.15  0.050 / 0.060
G19     79.6           24.9               10.0 +/-    1.78      19.6 +/-    1.78  0.040 / 0.060
G24     224.1          18.7               11.1 +/-    4.31      25.2 +/-    4.31  0.090 / 0.100
G25     316.1          33.3                8.8 +/-    1.62      14.5 +/-    1.62  0.060 / 0.100
G29     290.1          11.5                4.6 +/-   24.08      12.5 +/-   24.08  0.210 / 0.240