PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-00:42:30
G02     21.9           64.5                9.9 +/-    0.44      10.8 +/-    0.44  0.030 / 0.030
G05     151.9          51.7               13.9 +/-    0.57      17.2 +/-    0.57  0.020 / 0.030
G06     48.1           24.5                9.4 +/-    1.81      18.6 +/-    1.81  0.030 / 0.040
G12     230.0          78.6               11.6 +/-    0.57      11.8 +/-    0.57  0.030 / 0.060
G19     89.8           18.2               11.8 +/-    1.38      27.2 +/-    1.38  0.270 / 0.530
G24     215.9          10.8               14.9 +/-   17.55      40.8 +/-   17.55  0.240 / 0.470
G25     310.3          43.7               11.0 +/-    1.07      15.1 +/-    1.07  0.070 / 0.070
G29     298.5          18.9               10.4 +/-    1.59      23.5 +/-    1.59  0.070 / 0.070