PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/14-14:43:10
G01     228.1          18.7                9.9 +/-    3.03      22.6 +/-    3.03  0.100 / 0.160
G03     287.2          68.9               11.3 +/-    0.79      12.0 +/-    0.79  0.110 / 0.170
G14     83.1           28.5               10.0 +/-    0.82      18.1 +/-    0.82  0.100 / 0.080
G16     147.3          43.5               11.4 +/-    0.80      15.7 +/-    0.80  0.090 / 0.100
G22     207.1          70.6               12.2 +/-    0.80      12.9 +/-    0.80  0.040 / 0.030
G23     308.1          39.3                8.3 +/-    1.23      12.2 +/-    1.23  0.040 / 0.040
G26     98.6           53.4               11.2 +/-    1.38      13.5 +/-    1.38  0.130 / 0.240
G31     44.9           32.4                9.5 +/-    1.08      15.8 +/-    1.08  0.190 / 0.320