PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/19-00:27:30
G02     259.4          79.6               11.6 +/-    0.55      11.7 +/-    0.55  0.080 / 0.140
G05     169.3          20.2               12.5 +/-    2.04      27.3 +/-    2.04  0.100 / 0.110
G06     39.0           57.7               10.8 +/-    0.89      12.5 +/-    0.89  0.070 / 0.050
G12     320.7          53.0               10.8 +/-    1.23      13.2 +/-    1.23  0.060 / 0.050
G17     74.2           19.2                9.6 +/-    1.72      21.6 +/-    1.72  0.080 / 0.080
G19     60.8           35.9               10.6 +/-    1.27      16.6 +/-    1.27  0.080 / 0.080
G24     239.7          32.2               11.8 +/-    1.29      19.8 +/-    1.29  0.230 / 0.360
G25     317.0          16.4                7.8 +/-    2.03      18.6 +/-    2.03  0.200 / 0.330