PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/15-17:42:40
G01     227.5          18.7               10.2 +/-    2.30      23.1 +/-    2.30  0.110 / 0.200
G03     289.7          68.2                8.7 +/-    0.70       9.3 +/-    0.70  0.100 / 0.190
G14     84.9           24.7                9.8 +/-    1.78      19.2 +/-    1.78  0.060 / 0.090
G16     152.9          40.3                9.4 +/-    0.99      13.6 +/-    0.99  0.050 / 0.080
G22     216.3          71.6               10.3 +/-    0.98      10.8 +/-    0.98  0.190 / 0.620
G23     304.8          34.4                8.9 +/-    1.21      14.3 +/-    1.21  0.260 / 0.400
G26     112.2          54.5                7.5 +/-    0.64       8.9 +/-    0.64  0.190 / 0.270
G31     43.5           37.5                7.2 +/-    1.45      10.8 +/-    1.45  0.240 / 0.290
G32     96.4           9.9                 9.5 +/-    1.87      26.5 +/-    1.87  0.060 / 0.140