PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-17:57:40
G02     233.5          71.1                8.4 +/-    1.28       8.8 +/-    1.28  0.060 / 0.280
G05     173.1          13.6               10.2 +/-    2.13      26.2 +/-    2.13  0.050 / 0.240
G06     41.8           59.1                8.2 +/-    0.56       9.4 +/-    0.56  0.040 / 0.040
G12     322.7          53.3                8.3 +/-    0.92      10.0 +/-    0.92  0.050 / 0.050
G17     69.0           23.4                8.4 +/-    1.36      17.0 +/-    1.36  0.040 / 0.040
G19     51.5           43.0                8.4 +/-    1.05      11.6 +/-    1.05  0.040 / 0.040
G24     246.4          36.2               12.2 +/-    1.05      18.9 +/-    1.05  0.120 / 0.440
G25     316.1          10.4              -13.5 +/-   33.20     -37.3 +/-   33.20  0.140 / 0.520