PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-06:42:40
G01     223.5          14.3                5.9 +/-    4.03      14.9 +/-    4.03  0.050 / 0.050
G03     279.5          68.3                4.8 +/-    0.39       5.1 +/-    0.39  0.040 / 0.050
G09     297.3          12.4                7.3 +/-    2.23      19.2 +/-    2.23  0.300 / 0.340
G14     89.6           22.8                2.8 +/-    1.48       5.7 +/-    1.48  0.210 / 0.390
G16     138.6          50.1                6.9 +/-    1.12       8.7 +/-    1.12  0.110 / 0.210
G22     210.2          67.4                5.8 +/-    1.13       6.2 +/-    1.13  0.100 / 0.220
G23     310.2          40.0                4.7 +/-    0.70       6.8 +/-    0.70  0.040 / 0.050
G26     85.9           53.5                4.6 +/-    0.72       5.6 +/-    0.72  0.040 / 0.050
G31     47.5           26.7                2.7 +/-    1.64       5.0 +/-    1.64  0.140 / 0.240