PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-23:43:00
G02     350.8          77.5                8.6 +/-    0.50       8.8 +/-    0.50  0.030 / 0.030
G05     162.5          35.7               14.4 +/-    0.99      22.6 +/-    0.99  0.020 / 0.040
G06     42.2           38.2                7.7 +/-    1.06      11.6 +/-    1.06  0.040 / 0.090
G12     308.3          73.4                8.5 +/-    0.65       8.9 +/-    0.65  0.040 / 0.080
G17     86.2           12.9               10.8 +/-    1.73      28.2 +/-    1.73  0.130 / 0.170
G19     75.5           27.8               10.4 +/-    0.73      19.1 +/-    0.73  0.110 / 0.160
G24     227.0          21.7               16.6 +/-    1.39      35.1 +/-    1.39  0.040 / 0.040
G25     317.1          29.5                8.2 +/-    1.04      14.5 +/-    1.04  0.030 / 0.030