PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-15:13:10
G02     57.2           34.3                8.9 +/-    0.61      14.3 +/-    0.61  0.030 / 0.040
G05     67.1           66.0               11.9 +/-    0.42      12.9 +/-    0.42  0.030 / 0.040
G12     187.0          37.7               16.7 +/-    1.27      25.3 +/-    1.27  0.110 / 0.330
G13     132.5          12.5               21.7 +/-    2.94      57.2 +/-    2.94  0.110 / 0.270
G20     206.4          54.6               16.3 +/-    1.09      19.5 +/-    1.09  0.040 / 0.060
G21     269.2          17.9               12.7 +/-    2.55      29.5 +/-    2.55  0.040 / 0.050
G25     240.8          54.2               13.9 +/-    1.22      16.7 +/-    1.22  0.060 / 0.070
G29     330.9          56.7               10.4 +/-    0.82      12.2 +/-    0.82  0.070 / 0.080