PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-09:13:10
G01     105.0          26.6                5.9 +/-    1.41      11.2 +/-    1.41  0.020 / 0.040
G07     110.6          55.8                7.1 +/-    0.51       8.4 +/-    0.51  0.030 / 0.030
G08     41.5           16.6                2.7 +/-    0.70       6.4 +/-    0.70  0.080 / 0.120
G11     84.2           42.4                6.4 +/-    0.52       9.0 +/-    0.52  0.070 / 0.140
G13     307.7          30.3                2.5 +/-    2.27       4.4 +/-    2.27  0.030 / 0.040
G17     206.0          41.9                6.7 +/-    1.04       9.4 +/-    1.04  0.030 / 0.040
G18     76.4           24.1                4.2 +/-    1.05       8.5 +/-    1.05  0.070 / 0.160
G19     210.2          11.2               -1.8 +/-   11.48      -4.9 +/-   11.48  0.090 / 0.150
G28     319.8          61.0                5.0 +/-    0.94       5.7 +/-    0.94  0.090 / 0.170
G30     24.2           78.9                6.6 +/-    0.41       6.7 +/-    0.41  0.100 / 0.160