PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-04:27:40
G05     51.4           10.6                3.6 +/-    1.38      10.0 +/-    1.38  0.100 / 0.370
G10     240.3          16.9                7.9 +/-    1.10      18.7 +/-    1.10  0.080 / 0.370
G13     68.1           35.6                6.4 +/-    0.47      10.0 +/-    0.47  0.110 / 0.270
G15     113.3          55.7                8.8 +/-    0.36      10.5 +/-    0.36  0.110 / 0.350
G16     307.9          14.6                6.5 +/-    2.62      16.4 +/-    2.62  0.100 / 0.240
G20     268.5          61.8                6.6 +/-    0.90       7.4 +/-    0.90  0.110 / 0.330
G21     318.8          50.8                6.9 +/-    0.94       8.6 +/-    0.94  0.060 / 0.060
G26     279.5          19.9                5.9 +/-    1.70      13.0 +/-    1.70  0.040 / 0.050
G29     160.2          65.8                9.1 +/-    1.67       9.9 +/-    1.67  0.050 / 0.120