PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-04:43:10
G07     329.4          57.1                3.7 +/-    0.58       4.3 +/-    0.58  0.100 / 0.120
G08     106.6          50.6                5.4 +/-    0.81       6.7 +/-    0.81  0.120 / 0.110
G09     188.8          75.9                4.8 +/-    0.73       4.9 +/-    0.73  0.040 / 0.040
G11     149.7          11.3                3.0 +/-   11.76       8.1 +/-   11.76  0.040 / 0.050
G23     154.1          45.1                5.5 +/-    0.95       7.4 +/-    0.95  0.030 / 0.020
G27     59.0           33.3                4.6 +/-    1.26       7.5 +/-    1.26  0.030 / 0.030
G28     232.7          19.3                4.6 +/-    1.65      10.3 +/-    1.65  0.030 / 0.040
G30     297.7          30.7                4.4 +/-    1.42       7.5 +/-    1.42  0.040 / 0.040