PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-16:57:50
G02     332.8          79.7               13.8 +/-    0.38      14.0 +/-    0.38  0.030 / 0.040
G05     168.9          29.6               18.5 +/-    1.58      32.6 +/-    1.58  0.030 / 0.040
G06     41.5           41.6               12.5 +/-    0.63      17.7 +/-    0.63  0.110 / 0.270
G12     312.1          70.4               13.3 +/-    0.60      14.1 +/-    0.60  0.110 / 0.250
G19     75.9           26.0               14.5 +/-    1.41      27.6 +/-    1.41  0.070 / 0.130
G24     230.5          23.7               15.0 +/-    1.70      30.3 +/-    1.70  0.070 / 0.120
G25     317.0          31.6               14.5 +/-    1.86      24.5 +/-    1.86  0.040 / 0.060
G29     287.1          11.1                8.2 +/-   23.59      22.4 +/-   23.59  0.040 / 0.060