PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-14:28:10
G02     54.0           36.7                6.5 +/-    1.26      10.0 +/-    1.26  0.020 / 0.030
G05     76.8           69.3                8.6 +/-    0.76       9.1 +/-    0.76  0.030 / 0.030
G12     183.5          38.5                8.5 +/-    1.01      12.6 +/-    1.01  0.040 / 0.090
G13     131.8          10.4               -2.2 +/-   21.71      -6.0 +/-   21.71  0.040 / 0.070
G21     266.2          12.6                5.7 +/-    7.43      14.9 +/-    7.43  0.240 / 0.390
G25     249.1          56.0                7.5 +/-    2.03       8.8 +/-    2.03  0.230 / 0.370
G29     323.5          47.3                7.5 +/-    0.79       9.8 +/-    0.79  0.050 / 0.050