PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-22:27:50
G08     319.2          12.6                7.0 +/-    2.29      18.5 +/-    2.29  0.080 / 0.090
G10     307.4          54.9                7.3 +/-    0.67       8.7 +/-    0.67  0.070 / 0.100
G14     212.1          16.8               12.5 +/-    1.22      29.8 +/-    1.22  0.030 / 0.050
G15     46.0           27.8                6.8 +/-    1.38      12.4 +/-    1.38  0.030 / 0.040
G20     7.6            64.7                8.6 +/-    0.67       9.5 +/-    0.67  0.120 / 0.110
G21     113.3          69.8                9.7 +/-    0.53      10.3 +/-    0.53  0.100 / 0.140
G24     87.8           28.0                9.3 +/-    0.41      17.0 +/-    0.41  0.080 / 0.260
G27     294.2          35.9                9.1 +/-    1.41      14.2 +/-    1.41  0.090 / 0.350
G32     213.3          39.5               12.9 +/-    0.85      18.9 +/-    0.85  0.040 / 0.040