PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/16-00:42:40
G02     266.0          80.3                9.7 +/-    0.62       9.8 +/-    0.62  0.120 / 0.130
G05     168.9          21.3               15.6 +/-    1.29      33.3 +/-    1.29  0.080 / 0.130
G06     38.9           56.6               10.4 +/-    0.68      12.2 +/-    0.68  0.060 / 0.040
G12     320.5          54.3                9.4 +/-    1.02      11.2 +/-    1.02  0.050 / 0.040
G17     75.2           18.4                8.9 +/-    1.32      20.5 +/-    1.32  0.070 / 0.070
G19     62.0           35.1                9.9 +/-    1.73      15.7 +/-    1.73  0.080 / 0.070
G24     238.5          31.4               11.9 +/-    1.60      20.3 +/-    1.60  0.410 / 0.230
G25     317.1          17.6                7.6 +/-    3.51      17.7 +/-    3.51  0.140 / 0.210