PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-00:27:40
G05     51.5           11.1                8.1 +/-    1.60      22.1 +/-    1.60  0.130 / 0.390
G10     240.8          17.6               14.2 +/-    2.14      33.0 +/-    2.14  0.130 / 0.310
G13     67.0           35.2               10.1 +/-    1.05      16.0 +/-    1.05  0.120 / 0.440
G15     116.2          56.1               11.4 +/-    0.78      13.4 +/-    0.78  0.130 / 0.550
G16     306.7          15.0                8.0 +/-    2.00      19.8 +/-    2.00  0.100 / 0.410
G20     250.1          29.7               10.9 +/-    0.93      19.2 +/-    0.93  0.140 / 0.310
G21     319.0          50.8               12.4 +/-    1.02      15.5 +/-    1.02  0.050 / 0.070
G26     278.7          19.8               10.4 +/-    1.72      23.1 +/-    1.72  0.060 / 0.070
G29     160.7          65.6               11.2 +/-    1.94      12.2 +/-    1.94  0.030 / 0.040