PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-15:28:10
G08     267.7          17.1                6.3 +/-    2.73      14.9 +/-    2.73  0.050 / 0.090
G10     64.1           58.0                4.8 +/-    0.57       5.6 +/-    0.57  0.050 / 0.110
G11     311.9          16.4                5.6 +/-    3.67      13.5 +/-    3.67  0.140 / 0.210
G14     269.6          66.1                4.4 +/-    0.75       4.8 +/-    0.75  0.180 / 0.240
G21     154.1          11.1                8.1 +/-    3.46      22.1 +/-    3.46  0.040 / 0.050
G27     229.5          14.3                6.5 +/-    1.69      16.6 +/-    1.69  0.040 / 0.050
G31     177.7          32.7                6.5 +/-    2.02      10.7 +/-    2.02  0.120 / 0.340
G32     346.9          73.0                5.0 +/-    0.83       5.2 +/-    0.83  0.120 / 0.250