PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-06:58:10
G07     1.6            65.9                5.7 +/-    0.56       6.2 +/-    0.56  0.070 / 0.050
G08     70.6           49.6                6.4 +/-    0.61       8.1 +/-    0.61  0.080 / 0.060
G09     174.7          52.0                9.7 +/-    0.61      11.9 +/-    0.61  0.030 / 0.030
G11     134.3          23.4                7.7 +/-    1.66      15.6 +/-    1.66  0.030 / 0.030
G23     159.8          27.9                7.4 +/-    1.76      13.6 +/-    1.76  0.220 / 0.110
G27     44.7           23.6                4.3 +/-    2.06       8.7 +/-    2.06  0.130 / 0.130
G28     250.1          39.6                7.1 +/-    1.29      10.3 +/-    1.29  0.040 / 0.040
G30     312.8          43.9                4.9 +/-    1.04       6.7 +/-    1.04  0.050 / 0.040