PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-19:42:20
G02     37.8           51.6                9.9 +/-    0.44      12.3 +/-    0.44  0.030 / 0.040
G05     123.5          67.4               12.2 +/-    0.56      13.1 +/-    0.56  0.030 / 0.040
G12     186.5          56.3               12.6 +/-    0.98      14.8 +/-    0.98  0.060 / 0.050
G25     283.1          57.7               10.2 +/-    0.49      11.8 +/-    0.49  0.060 / 0.070
G29     311.7          32.3                8.8 +/-    1.11      14.7 +/-    1.11  0.050 / 0.060