PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/17-06:13:10
G02     0.6            75.9                4.4 +/-    0.38       4.6 +/-    0.38  0.050 / 0.070
G05     162.1          36.6                8.8 +/-    0.78      13.6 +/-    0.78  0.050 / 0.060
G06     41.6           40.5                3.4 +/-    1.72       4.9 +/-    1.72  0.100 / 0.140
G12     308.1          71.8                4.1 +/-    0.96       4.2 +/-    0.96  0.230 / 0.190
G17     87.7           11.2                5.3 +/-    2.40      14.5 +/-    2.40  0.040 / 0.080
G19     77.5           25.6                3.9 +/-    1.64       7.6 +/-    1.64  0.080 / 0.040
G24     227.4          21.3                5.5 +/-    1.62      11.8 +/-    1.62  0.030 / 0.030
G25     317.0          30.3                4.3 +/-    2.06       7.5 +/-    2.06  0.030 / 0.030
G29     288.5          11.2               -5.2 +/-   13.87     -14.2 +/-   13.87  0.110 / 0.110