PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/13-16:58:10
G07     348.8          63.1               11.4 +/-    0.76      12.6 +/-    0.76  0.030 / 0.050
G08     85.0           53.7               12.3 +/-    0.51      14.8 +/-    0.51  0.030 / 0.060
G09     183.3          62.7               14.0 +/-    1.16      15.5 +/-    1.16  0.080 / 0.070
G11     140.0          19.4               15.0 +/-    3.33      33.6 +/-    3.33  0.080 / 0.100
G23     156.7          26.7               14.2 +/-    1.76      26.8 +/-    1.76  0.080 / 0.100
G27     46.6           25.3               11.5 +/-    0.70      22.3 +/-    0.70  0.060 / 0.110
G28     246.4          37.6               15.3 +/-    2.78      23.2 +/-    2.78  0.120 / 0.400
G30     310.9          42.8               11.1 +/-    1.02      15.5 +/-    1.02  0.110 / 0.420