PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-22:13:10
G03     209.4          55.5                9.1 +/-    0.90      10.8 +/-    0.90  0.050 / 0.070
G07     258.7          16.5                8.4 +/-    4.09      20.1 +/-    4.09  0.050 / 0.060
G09     311.1          29.0                7.5 +/-    0.77      13.4 +/-    0.77  0.240 / 0.360
G16     95.2           65.8               10.3 +/-    0.67      11.2 +/-    0.67  0.100 / 0.270
G22     187.7          39.7                9.6 +/-    0.58      14.0 +/-    0.58  0.040 / 0.030
G23     332.2          61.7                7.9 +/-    0.39       8.9 +/-    0.39  0.040 / 0.030
G26     52.3           42.5                6.7 +/-    1.03       9.3 +/-    1.03  0.130 / 0.250
G27     131.5          12.4               10.1 +/-    2.78      26.8 +/-    2.78  0.170 / 0.260
G31     60.4           9.5                 7.3 +/-    2.16      20.5 +/-    2.16  0.170 / 0.250