PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-19:57:50
G02     76.8           20.1                8.9 +/-    1.89      19.6 +/-    1.89  0.110 / 0.340
G05     44.5           40.1                8.6 +/-    1.00      12.5 +/-    1.00  0.110 / 0.400
G12     179.5          10.9               14.0 +/-    1.35      38.3 +/-    1.35  0.100 / 0.150
G13     105.6          29.1               12.1 +/-    1.08      21.7 +/-    1.08  0.090 / 0.160
G15     150.7          31.7               13.7 +/-    0.98      23.2 +/-    0.98  0.090 / 0.180
G20     230.1          17.2               12.3 +/-    3.17      29.1 +/-    3.17  0.080 / 0.160
G21     290.5          30.4               10.4 +/-    1.14      18.0 +/-    1.14  0.080 / 0.180
G25     214.4          33.2               12.6 +/-    1.33      20.7 +/-    1.33  0.080 / 0.140
G26     311.7          15.4                9.2 +/-    2.07      22.6 +/-    2.07  0.030 / 0.070
G29     350.4          77.9               10.2 +/-    0.45      10.4 +/-    0.45  0.030 / 0.070