PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-08:28:00
G07     348.3          62.9                4.3 +/-    0.80       4.7 +/-    0.80  0.060 / 0.100
G08     81.0           51.5                6.2 +/-    0.66       7.7 +/-    0.66  0.060 / 0.080
G09     176.3          59.7                7.6 +/-    1.58       8.7 +/-    1.58  0.050 / 0.050
G11     139.0          19.3                5.3 +/-    2.68      11.8 +/-    2.68  0.040 / 0.060
G23     158.4          33.6                6.3 +/-    1.05      10.3 +/-    1.05  0.030 / 0.050
G27     48.5           27.5                3.1 +/-    1.21       5.6 +/-    1.21  0.040 / 0.050
G28     244.3          35.4                7.8 +/-    0.96      12.3 +/-    0.96  0.080 / 0.130
G30     307.9          39.6                3.5 +/-    1.00       5.2 +/-    1.00  0.080 / 0.150