PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-10:13:10
G07     36.5           69.5                3.7 +/-    0.65       3.9 +/-    0.65  0.040 / 0.040
G08     53.5           41.4                2.7 +/-    1.23       3.9 +/-    1.23  0.040 / 0.050
G09     176.3          39.2                5.3 +/-    0.81       7.8 +/-    0.81  0.020 / 0.040
G11     122.1          32.3                5.0 +/-    1.16       8.4 +/-    1.16  0.030 / 0.030
G17     198.6          11.4               -7.0 +/-   14.76     -18.9 +/-   14.76  0.100 / 0.140
G18     108.0          13.9                4.3 +/-    1.59      10.9 +/-    1.59  0.090 / 0.150
G23     161.1          13.8                3.8 +/-    4.00       9.7 +/-    4.00  0.110 / 0.250
G27     38.3           11.9                1.1 +/-    1.12       3.0 +/-    1.12  0.060 / 0.260
G28     267.7          49.6                2.7 +/-    1.23       3.4 +/-    1.23  0.190 / 0.480
G30     324.9          54.4                3.8 +/-    0.62       4.6 +/-    0.62  0.180 / 0.450