PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/30-08:43:00
G01     87.0           32.3                4.5 +/-    0.57       7.6 +/-    0.57  0.040 / 0.060
G07     127.8          41.9                6.5 +/-    0.93       9.1 +/-    0.93  0.040 / 0.050
G11     65.5           37.6                3.2 +/-    0.65       4.8 +/-    0.65  0.100 / 0.360
G13     293.4          35.6                5.0 +/-    1.17       7.9 +/-    1.17  0.140 / 0.390
G15     313.8          11.1                0.6 +/-    7.48       1.7 +/-    7.48  0.050 / 0.070
G17     216.4          58.2                6.8 +/-    0.71       7.9 +/-    0.71  0.050 / 0.060
G19     215.7          31.0                6.5 +/-    1.38      11.2 +/-    1.38  0.040 / 0.050
G28     355.5          61.4                4.0 +/-    0.72       4.5 +/-    0.72  0.050 / 0.050
G30     110.6          74.2                5.5 +/-    0.73       5.7 +/-    0.73  0.110 / 0.110