PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-22:27:30
G02     232.8          72.9               14.7 +/-    0.29      15.3 +/-    0.29  0.070 / 0.100
G05     172.5          13.2               23.8 +/-    2.85      61.7 +/-    2.85  0.070 / 0.110
G06     41.8           64.6               12.8 +/-    0.66      14.0 +/-    0.66  0.030 / 0.040
G12     320.4          45.1               12.4 +/-    0.46      16.7 +/-    0.46  0.030 / 0.030
G17     67.2           24.6               11.6 +/-    2.88      22.9 +/-    2.88  0.050 / 0.060
G19     53.0           40.6               11.5 +/-    1.81      16.6 +/-    1.81  0.060 / 0.050
G24     248.7          36.8               16.5 +/-    1.78      25.4 +/-    1.78  0.050 / 0.060