PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-01:57:30
G02     66.5           26.6               10.0 +/-    2.58      18.9 +/-    2.58  0.090 / 0.110
G05     49.1           52.2               12.0 +/-    0.68      14.8 +/-    0.68  0.090 / 0.080
G12     184.3          26.2               12.2 +/-    1.68      23.3 +/-    1.68  0.080 / 0.170
G13     120.2          20.5               12.9 +/-    1.79      28.0 +/-    1.79  0.120 / 0.160
G15     158.2          19.7               13.9 +/-    1.01      30.7 +/-    1.01  0.080 / 0.120
G21     278.9          23.1               10.1 +/-    1.60      20.5 +/-    1.60  0.070 / 0.120
G25     225.5          45.5               12.6 +/-    2.80      16.9 +/-    2.80  0.120 / 0.300
G29     339.0          65.8               12.6 +/-    1.13      13.7 +/-    1.13  0.090 / 0.330