PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-04:28:10
G10     258.9          32.9               10.1 +/-    1.42      16.7 +/-    1.42  0.110 / 0.230
G13     46.4           24.3                7.4 +/-    2.07      14.7 +/-    2.07  0.100 / 0.220
G15     69.9           54.2                7.9 +/-    0.44       9.5 +/-    0.44  0.040 / 0.040
G16     285.7          14.4                8.5 +/-    1.54      21.5 +/-    1.54  0.030 / 0.030
G20     307.5          66.8                8.0 +/-    0.73       8.6 +/-    0.73  0.110 / 0.170
G21     345.7          66.3                8.6 +/-    0.60       9.3 +/-    0.60  0.090 / 0.290
G26     258.1          11.6               11.3 +/-    4.14      30.3 +/-    4.14  0.140 / 0.160
G27     321.4          12.8                4.4 +/-   16.05      11.7 +/-   16.05  0.080 / 0.120
G29     167.2          40.4               10.0 +/-    1.32      14.5 +/-    1.32  0.040 / 0.030