PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-09:12:40
G01     222.7          13.4                3.9 +/-    3.01      10.0 +/-    3.01  0.110 / 0.150
G03     272.9          69.5                4.8 +/-    0.56       5.1 +/-    0.56  0.100 / 0.180
G09     297.7          12.2                4.0 +/-   13.15      10.5 +/-   13.15  0.040 / 0.030
G14     90.1           23.3                3.7 +/-    2.01       7.5 +/-    2.01  0.040 / 0.030
G16     137.9          51.1                6.1 +/-    0.68       7.6 +/-    0.68  0.180 / 0.680
G22     203.4          65.3                4.6 +/-    0.51       5.0 +/-    0.51  0.180 / 0.760
G23     312.4          42.5                4.6 +/-    1.09       6.4 +/-    1.09  0.030 / 0.040
G26     83.8           53.4                5.6 +/-    1.10       6.8 +/-    1.10  0.040 / 0.040
G31     48.0           25.7                3.0 +/-    2.71       5.8 +/-    2.71  0.030 / 0.100