PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-07:27:40
G01     223.5          14.3                3.9 +/-    4.18       9.9 +/-    4.18  0.040 / 0.040
G03     278.7          68.5                4.0 +/-    1.01       4.3 +/-    1.01  0.040 / 0.030
G09     297.2          12.1                5.6 +/-    4.30      15.0 +/-    4.30  0.100 / 0.220
G14     89.4           23.2                3.0 +/-    1.55       6.1 +/-    1.55  0.100 / 0.220
G16     138.9          50.1                6.5 +/-    0.98       8.3 +/-    0.98  0.050 / 0.070
G22     208.6          67.1                3.6 +/-    0.98       3.9 +/-    0.98  0.040 / 0.060
G23     310.6          40.5                4.2 +/-    1.10       6.1 +/-    1.10  0.040 / 0.040
G26     86.0           53.5                5.3 +/-    0.60       6.4 +/-    0.60  0.030 / 0.040
G31     47.5           26.7                2.8 +/-    2.08       5.3 +/-    2.08  0.360 / 0.390