PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-21:12:40
G07     34.9           69.7               14.1 +/-    0.74      14.9 +/-    0.74  0.320 / 0.290
G08     58.0           47.0               12.9 +/-    0.97      16.9 +/-    0.97  0.140 / 0.230
G09     179.7          42.7               15.8 +/-    0.80      22.1 +/-    0.80  0.110 / 0.060
G11     126.5          31.4               14.0 +/-    1.39      23.8 +/-    1.39  0.100 / 0.080
G18     16.3           -23.7              31.6 +/-    1.54      63.6 +/-    1.54  0.190 / 0.420
G23     159.5          10.1               14.0 +/-    2.12      38.9 +/-    2.12  0.110 / 0.380
G27     37.9           10.9               11.8 +/-    1.62      32.4 +/-    1.62  0.050 / 0.070
G28     269.0          50.4               14.8 +/-    2.50      18.5 +/-    2.50  0.050 / 0.060
G30     330.8          58.6               13.7 +/-    0.75      15.7 +/-    0.75  0.060 / 0.110