PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/30-07:43:00
G01     52.6           27.0                3.1 +/-    2.53       5.9 +/-    2.53  0.040 / 0.050
G06     181.3          19.0                6.9 +/-    2.06      15.6 +/-    2.06  0.030 / 0.050
G07     145.3          14.4                6.8 +/-    4.35      17.1 +/-    4.35  0.150 / 0.350
G11     45.5           17.3                3.2 +/-    1.94       7.6 +/-    1.94  0.140 / 0.230
G13     255.2          31.7                5.7 +/-    2.71       9.6 +/-    2.71  0.170 / 0.250
G15     286.1          16.4                6.1 +/-    1.48      14.7 +/-    1.48  0.120 / 0.230
G17     306.0          79.3                7.3 +/-    0.58       7.4 +/-    0.58  0.030 / 0.020
G19     243.4          59.1                7.2 +/-    1.55       8.2 +/-    1.55  0.020 / 0.020
G28     49.2           53.5                5.8 +/-    0.83       7.0 +/-    0.83  0.110 / 0.150
G30     147.8          43.3                7.9 +/-    0.41      11.0 +/-    0.41  0.110 / 0.160