PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-19:13:10
G01     228.1          18.6               10.8 +/-    3.36      24.5 +/-    3.36  0.110 / 0.160
G03     288.2          68.4                9.5 +/-    0.50      10.1 +/-    0.50  0.100 / 0.230
G14     84.2           26.6                9.2 +/-    2.21      17.3 +/-    2.21  0.040 / 0.050
G16     150.0          42.4               11.7 +/-    0.84      16.4 +/-    0.84  0.030 / 0.060
G22     218.9          72.2               12.0 +/-    1.35      12.6 +/-    1.35  0.040 / 0.080
G23     306.2          36.6                8.6 +/-    0.80      13.3 +/-    0.80  0.040 / 0.070
G26     101.3          53.7                9.2 +/-    0.84      11.1 +/-    0.84  0.210 / 0.300
G31     44.4           33.9                7.1 +/-    1.14      11.5 +/-    1.14  0.140 / 0.400