PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/19-19:58:10
G03     189.4          19.9               13.5 +/-    1.45      29.9 +/-    1.45  0.110 / 0.140
G07     293.1          41.1               12.3 +/-    3.14      17.6 +/-    3.14  0.110 / 0.100
G08     139.2          28.8               14.7 +/-    2.17      26.4 +/-    2.17  0.070 / 0.080
G09     320.6          62.9               12.2 +/-    0.92      13.5 +/-    0.92  0.070 / 0.080
G16     43.8           42.8               10.7 +/-    0.85      14.9 +/-    0.85  0.180 / 0.260
G23     110.7          81.1               10.9 +/-    0.41      11.0 +/-    0.41  0.290 / 0.260
G26     43.9           16.3               10.0 +/-    2.58      24.1 +/-    2.58  0.030 / 0.030
G27     102.6          33.7               13.6 +/-    0.98      22.0 +/-    0.98  0.030 / 0.030
G30     273.8          12.5               12.6 +/-    4.28      33.4 +/-    4.28  0.080 / 0.130