PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-06:58:10
G07     320.6          53.2                5.7 +/-    0.39       6.9 +/-    0.39  0.040 / 0.050
G08     111.2          47.9                8.7 +/-    1.13      11.2 +/-    1.13  0.040 / 0.040
G09     187.0          79.4                5.4 +/-    0.52       5.5 +/-    0.52  0.150 / 0.160
G16     44.2           13.6                1.4 +/-    3.25       3.6 +/-    3.25  0.090 / 0.120
G23     152.1          53.3                8.3 +/-    0.80      10.0 +/-    0.80  0.040 / 0.050
G27     66.9           36.4                6.3 +/-    0.54       9.7 +/-    0.54  0.040 / 0.050
G28     230.1          20.7                5.4 +/-    2.16      11.7 +/-    2.16  0.030 / 0.040
G30     293.5          27.4                4.1 +/-    3.13       7.6 +/-    3.13  0.040 / 0.050