PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-09:27:40
G10     301.5          53.0                6.1 +/-    0.99       7.4 +/-    0.99  0.130 / 0.460
G14     211.6          11.8               -1.1 +/-   16.23      -2.8 +/-   16.23  0.190 / 0.710
G15     45.6           24.6                4.5 +/-    2.46       8.8 +/-    2.46  0.080 / 0.060
G20     63.8           35.0                4.9 +/-    0.70       7.8 +/-    0.70  0.070 / 0.080
G21     106.1          71.6                4.9 +/-    1.84       5.1 +/-    1.84  0.040 / 0.040
G24     94.5           27.6                4.7 +/-    1.28       8.7 +/-    1.28  0.030 / 0.030
G27     296.3          35.8                7.4 +/-    2.09      11.5 +/-    2.09  0.060 / 0.090
G32     211.8          36.4                8.1 +/-    1.39      12.5 +/-    1.39  0.060 / 0.090