PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-14:27:50
G01     320.7          12.0                0.4 +/-   16.24       1.1 +/-   16.24  0.110 / 0.290
G08     266.6          16.2                6.7 +/-    1.42      16.1 +/-    1.42  0.110 / 0.170
G10     67.8           57.1                7.5 +/-    0.73       8.8 +/-    0.73  0.030 / 0.040
G11     310.9          17.2                5.1 +/-    1.09      12.1 +/-    1.09  0.030 / 0.040
G14     273.6          66.8                8.4 +/-    0.49       9.1 +/-    0.49  0.050 / 0.100
G27     228.1          12.9                5.0 +/-    2.63      13.0 +/-    2.63  0.060 / 0.090
G31     176.9          35.2               10.8 +/-    1.88      17.1 +/-    1.88  0.210 / 0.330
G32     353.8          71.6                7.1 +/-    0.54       7.5 +/-    0.54  0.270 / 0.360