PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-21:42:40
G02     61.0           32.7               10.7 +/-    0.63      17.8 +/-    0.63  0.130 / 0.300
G05     56.8           62.3               11.6 +/-    0.49      12.9 +/-    0.49  0.110 / 0.330
G12     183.9          28.1               16.9 +/-    1.60      30.9 +/-    1.60  0.070 / 0.130
G13     127.0          17.5               17.1 +/-    1.64      40.1 +/-    1.64  0.050 / 0.140
G15     163.4          13.7               21.3 +/-    3.58      54.6 +/-    3.58  0.050 / 0.070
G20     208.8          65.4               16.4 +/-    0.97      17.8 +/-    0.97  0.040 / 0.090
G21     273.8          19.6               12.8 +/-    1.84      28.5 +/-    1.84  0.030 / 0.050
G25     224.4          47.7               15.9 +/-    1.15      20.6 +/-    1.15  0.030 / 0.040
G29     332.4          60.1               12.9 +/-    0.81      14.7 +/-    0.81  0.030 / 0.040