PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/06-03:42:40
G01     127.5          11.1                0.2 +/-   34.80       0.7 +/-   34.80  0.040 / 0.040
G07     56.5           68.7                5.5 +/-    0.72       5.9 +/-    0.72  0.040 / 0.040
G08     49.5           37.6                2.7 +/-    0.52       4.0 +/-    0.52  0.120 / 0.380
G09     176.2          34.6                6.2 +/-    1.07       9.9 +/-    1.07  0.120 / 0.470
G11     116.9          35.4                6.1 +/-    0.85       9.6 +/-    0.85  0.230 / 0.360
G13     321.1          11.5               -7.1 +/-   10.67     -19.3 +/-   10.67  0.150 / 0.280
G17     198.7          16.5                5.3 +/-    1.72      12.8 +/-    1.72  0.050 / 0.070
G23     161.5          10.1                4.3 +/-    1.71      12.1 +/-    1.71  0.070 / 0.070
G28     272.9          51.0                5.6 +/-    0.67       7.0 +/-    0.67  0.030 / 0.030
G30     330.1          58.8                4.3 +/-    0.71       4.9 +/-    0.71  0.030 / 0.030