PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-19:43:10
G02     27.8           59.5                8.6 +/-    0.75       9.8 +/-    0.75  0.030 / 0.040
G05     144.3          59.5               10.8 +/-    1.31      12.3 +/-    1.31  0.040 / 0.050
G06     52.7           16.3                6.3 +/-    0.82      15.1 +/-    0.82  0.030 / 0.030
G12     193.5          68.5                8.0 +/-    0.64       8.5 +/-    0.64  0.030 / 0.030
G19     96.5           14.2                9.1 +/-    2.22      23.1 +/-    2.22  0.050 / 0.050
G25     300.6          52.0                8.3 +/-    1.21      10.2 +/-    1.21  0.050 / 0.050
G29     304.6          24.6                9.6 +/-    1.76      18.9 +/-    1.76  0.060 / 0.070