PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-15:57:30
G03     190.3          21.8               11.5 +/-    1.76      24.2 +/-    1.76  0.100 / 0.240
G07     287.9          35.8               10.6 +/-    1.06      16.6 +/-    1.06  0.100 / 0.180
G08     146.1          25.1               12.1 +/-    1.43      23.5 +/-    1.43  0.030 / 0.040
G09     320.6          60.4               10.0 +/-    0.62      11.3 +/-    0.62  0.030 / 0.040
G16     43.2           39.3                5.8 +/-    0.40       8.6 +/-    0.40  0.060 / 0.120
G23     115.3          75.6               10.1 +/-    0.67      10.4 +/-    0.67  0.050 / 0.110
G26     43.3           11.5                7.2 +/-    3.07      19.4 +/-    3.07  0.180 / 0.330
G27     101.4          32.9               11.1 +/-    0.35      18.4 +/-    0.35  0.190 / 0.350
G30     272.6          12.4               10.6 +/-    2.08      28.0 +/-    2.08  0.040 / 0.100