PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/24-14:57:50
G02     71.8           22.4                8.5 +/-    0.92      17.7 +/-    0.92  0.030 / 0.040
G05     46.5           50.9                8.9 +/-    0.49      11.1 +/-    0.49  0.030 / 0.040
G12     179.5          16.0               10.7 +/-    1.40      26.0 +/-    1.40  0.170 / 0.440
G13     113.4          24.6               13.5 +/-    2.09      26.5 +/-    2.09  0.150 / 0.360
G15     153.9          25.8               12.7 +/-    3.05      24.5 +/-    3.05  0.110 / 0.190
G20     226.2          12.5                1.1 +/-   23.47       2.9 +/-   23.47  0.080 / 0.290
G21     284.2          26.1                8.8 +/-    1.64      16.8 +/-    1.64  0.090 / 0.190
G25     220.1          40.1               10.3 +/-    1.62      15.0 +/-    1.62  0.080 / 0.190
G26     317.4          11.6                0.9 +/-   26.54       2.6 +/-   26.54  0.090 / 0.090
G29     338.9          68.7                9.2 +/-    0.40       9.9 +/-    0.40  0.090 / 0.090