PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-03:27:50
G02     331.9          80.3                2.0 +/-    0.57       2.0 +/-    0.57  0.220 / 0.190
G05     165.2          30.3                6.2 +/-    1.39      10.7 +/-    1.39  0.230 / 0.230
G06     38.9           48.9                1.3 +/-    1.00       1.7 +/-    1.00  0.110 / 0.160
G12     316.6          64.6                2.3 +/-    0.98       2.5 +/-    0.98  0.130 / 0.130
G17     83.6           12.0                3.4 +/-    2.24       9.1 +/-    2.24  0.070 / 0.090
G19     71.0           29.6                3.3 +/-    1.27       5.8 +/-    1.27  0.070 / 0.090
G24     229.1          24.7                6.6 +/-    2.99      12.9 +/-    2.99  0.040 / 0.030
G25     317.2          27.5                1.6 +/-    3.50       3.0 +/-    3.50  0.040 / 0.030
G29     285.1          11.0               -6.0 +/-   13.61     -16.3 +/-   13.61  0.060 / 0.030