PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-15:28:10
G01     310.1          30.8                6.0 +/-    1.25      10.4 +/-    1.25  0.060 / 0.180
G10     102.1          43.0                7.1 +/-    0.59       9.8 +/-    0.59  0.070 / 0.170
G11     288.9          26.6                7.5 +/-    1.99      14.1 +/-    1.99  0.030 / 0.030
G14     343.4          68.7                5.7 +/-    0.54       6.1 +/-    0.54  0.030 / 0.040
G22     308.7          24.6                6.2 +/-    1.73      12.3 +/-    1.73  0.040 / 0.050
G25     86.4           15.6                7.5 +/-    1.27      18.4 +/-    1.27  0.040 / 0.050
G31     168.2          61.8                8.6 +/-    0.94       9.6 +/-    0.94  0.100 / 0.190
G32     33.1           54.4                5.4 +/-    0.61       6.4 +/-    0.61  0.140 / 0.180