PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-03:27:40
G01     295.5          38.8               12.6 +/-    0.94      18.6 +/-    0.94  0.080 / 0.090
G03     310.0          11.8                1.3 +/-   20.07       3.5 +/-   20.07  0.070 / 0.090
G10     116.2          32.8               15.4 +/-    0.57      25.5 +/-    0.57  0.080 / 0.100
G11     267.4          28.1               10.9 +/-    0.80      19.8 +/-    0.80  0.080 / 0.120
G14     20.8           60.1               13.8 +/-    0.64      15.7 +/-    0.64  0.050 / 0.090
G22     312.8          34.6               11.0 +/-    2.24      17.5 +/-    2.24  0.050 / 0.090
G25     67.6           17.7                7.2 +/-    0.75      16.7 +/-    0.75  0.030 / 0.030
G31     154.1          75.4               15.4 +/-    0.89      15.9 +/-    0.89  0.020 / 0.030
G32     45.1           46.8               10.4 +/-    0.84      13.6 +/-    0.84  0.050 / 0.060