PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-19:43:00
G02     4.2            72.6               11.2 +/-    0.57      11.7 +/-    0.57  0.030 / 0.030
G05     163.1          41.9               15.4 +/-    0.71      21.8 +/-    0.71  0.040 / 0.040
G06     45.5           30.2               10.1 +/-    2.10      17.5 +/-    2.10  0.030 / 0.020
G12     266.6          79.9               11.7 +/-    1.43      11.9 +/-    1.43  0.030 / 0.020
G19     86.2           18.9               11.3 +/-    1.49      25.6 +/-    1.49  0.060 / 0.050
G24     221.8          15.6               14.7 +/-    3.29      36.0 +/-    3.29  0.060 / 0.070
G25     312.2          43.9               12.5 +/-    0.58      17.1 +/-    0.58  0.210 / 0.250
G29     295.2          17.2               14.1 +/-    2.11      33.2 +/-    2.11  0.110 / 0.170