PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-15:42:50
G01     226.5          17.8                9.3 +/-    2.49      21.6 +/-    2.49  0.160 / 0.170
G03     283.3          70.3                8.3 +/-    0.68       8.8 +/-    0.68  0.090 / 0.180
G14     85.9           24.0                8.5 +/-    1.22      17.0 +/-    1.22  0.160 / 0.260
G16     154.0          40.5               10.3 +/-    1.28      14.9 +/-    1.28  0.240 / 0.300
G22     208.3          69.8                8.7 +/-    0.29       9.2 +/-    0.29  0.120 / 0.170
G23     306.1          35.9                7.2 +/-    1.42      11.3 +/-    1.42  0.110 / 0.170
G26     106.7          54.9                8.3 +/-    0.54       9.9 +/-    0.54  0.050 / 0.040
G31     44.5           35.0                6.3 +/-    0.98      10.0 +/-    0.98  0.040 / 0.030
G32     97.0           10.2                9.1 +/-    2.18      25.4 +/-    2.18  0.070 / 0.070