PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-18:57:40
G02     332.5          79.2                8.7 +/-    0.31       8.9 +/-    0.31  0.040 / 0.030
G05     164.6          32.5               12.2 +/-    1.35      20.4 +/-    1.35  0.030 / 0.030
G06     41.0           41.0                7.8 +/-    1.14      11.1 +/-    1.14  0.130 / 0.240
G12     313.9          68.5                8.7 +/-    0.54       9.3 +/-    0.54  0.170 / 0.190
G17     83.6           14.2                9.0 +/-    2.14      22.9 +/-    2.14  0.090 / 0.200
G19     74.3           26.5                7.5 +/-    1.58      14.2 +/-    1.58  0.100 / 0.260
G24     229.6          23.4               12.4 +/-    2.89      25.2 +/-    2.89  0.060 / 0.090