PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-21:28:10
G02     60.5           33.1               11.6 +/-    0.31      19.1 +/-    0.31  0.090 / 0.260
G05     58.0           63.1               13.0 +/-    0.90      14.4 +/-    0.90  0.090 / 0.280
G12     184.1          28.9               17.2 +/-    1.68      30.8 +/-    1.68  0.050 / 0.110
G13     127.7          17.0               19.2 +/-    1.06      45.5 +/-    1.06  0.060 / 0.110
G15     163.7          13.2               23.1 +/-    3.57      60.0 +/-    3.57  0.060 / 0.080
G20     208.4          64.5               17.2 +/-    0.69      18.8 +/-    0.69  0.050 / 0.080
G21     273.2          19.2               12.3 +/-    2.03      27.5 +/-    2.03  0.040 / 0.040
G25     225.5          48.4               15.8 +/-    0.92      20.4 +/-    0.92  0.070 / 0.040
G29     332.0          59.5               13.3 +/-    0.62      15.2 +/-    0.62  0.030 / 0.040