PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-17:58:00
G02     9.2            71.2               14.9 +/-    0.65      15.6 +/-    0.65  0.050 / 0.070
G05     164.7          41.4               19.6 +/-    1.14      27.9 +/-    1.14  0.050 / 0.060
G06     45.5           30.4               11.6 +/-    1.76      20.1 +/-    1.76  0.030 / 0.030
G12     267.2          79.5               16.6 +/-    1.05      16.8 +/-    1.05  0.020 / 0.020
G19     86.7           18.6               13.6 +/-    2.15      30.9 +/-    2.15  0.120 / 0.170
G20     197.4          10.4               -5.4 +/-   19.89     -15.1 +/-   19.89  0.160 / 0.240
G24     221.4          15.2               17.1 +/-    1.89      42.3 +/-    1.89  0.040 / 0.040
G25     312.3          43.2               16.1 +/-    0.82      22.2 +/-    0.82  0.060 / 0.060
G29     296.1          18.5               16.5 +/-    3.05      37.7 +/-    3.05  0.140 / 0.000