PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-14:43:00
G02     53.0           37.6                5.4 +/-    1.71       8.2 +/-    1.71  0.030 / 0.020
G05     79.4           69.7                7.4 +/-    0.51       7.9 +/-    0.51  0.030 / 0.080
G12     183.9          39.8                8.0 +/-    0.80      11.7 +/-    0.80  0.270 / 0.470
G13     132.6          9.8                -6.2 +/-   19.04     -17.3 +/-   19.04  0.240 / 0.450
G21     265.3          11.9                4.5 +/-   11.39      12.1 +/-   11.39  0.040 / 0.070
G25     251.2          56.4               11.2 +/-    2.17      13.2 +/-    2.17  0.040 / 0.090
G29     322.9          46.4                7.2 +/-    0.52       9.5 +/-    0.52  0.040 / 0.050