PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-05:42:40
G01     113.8          19.8                8.2 +/-    1.36      18.2 +/-    1.36  0.030 / 0.030
G07     89.9           64.1                7.1 +/-    0.90       7.8 +/-    0.90  0.030 / 0.030
G08     43.8           28.7                4.9 +/-    1.93       8.8 +/-    1.93  0.150 / 0.140
G09     174.5          20.5                7.8 +/-    2.07      16.9 +/-    2.07  0.090 / 0.110
G11     105.4          42.8                9.1 +/-    0.75      12.6 +/-    0.75  0.030 / 0.030
G13     315.3          23.5                4.9 +/-    1.78      10.0 +/-    1.78  0.030 / 0.040
G17     201.8          27.6                7.8 +/-    1.61      14.4 +/-    1.61  0.110 / 0.230
G28     287.2          53.5                6.1 +/-    2.74       7.4 +/-    2.74  0.090 / 0.140
G30     345.2          69.6                6.5 +/-    0.52       6.9 +/-    0.52  0.100 / 0.090