PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/10-15:57:40
G02     30.0           58.4                9.0 +/-    0.49      10.4 +/-    0.49  0.030 / 0.040
G05     150.8          57.4               10.6 +/-    0.73      12.3 +/-    0.73  0.030 / 0.050
G06     51.6           20.3                6.1 +/-    1.17      13.3 +/-    1.17  0.050 / 0.030
G12     207.8          71.9                9.7 +/-    0.88      10.1 +/-    0.88  0.040 / 0.030
G19     98.1           10.4                8.3 +/-    1.44      23.0 +/-    1.44  0.050 / 0.050
G20     198.2          22.6                9.4 +/-    2.82      19.5 +/-    2.82  0.050 / 0.040
G25     299.9          53.1               10.5 +/-    0.63      12.8 +/-    0.63  0.070 / 0.180
G29     307.3          29.7                8.5 +/-    1.01      15.0 +/-    1.01  0.070 / 0.150