PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-03:27:50
G05     48.3           17.5                5.5 +/-    0.80      12.8 +/-    0.80  0.160 / 0.430
G10     234.8          10.5               -9.5 +/-   38.86     -26.1 +/-   38.86  0.110 / 0.380
G13     78.9           36.6                9.3 +/-    1.09      14.3 +/-    1.09  0.040 / 0.080
G15     128.0          50.8               12.3 +/-    0.57      15.4 +/-    0.57  0.060 / 0.080
G16     315.3          12.1                8.2 +/-    2.98      21.9 +/-    2.98  0.070 / 0.140
G20     251.4          50.1               12.1 +/-    1.30      15.3 +/-    1.30  0.070 / 0.150
G21     310.6          45.1                9.3 +/-    1.17      12.4 +/-    1.17  0.280 / 0.450
G25     201.1          12.9               10.0 +/-    2.10      26.1 +/-    2.10  0.240 / 0.300
G26     288.3          21.0                8.6 +/-    2.28      18.5 +/-    2.28  0.070 / 0.120
G29     154.2          75.8               12.2 +/-    0.70      12.5 +/-    0.70  0.070 / 0.130