PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-09:27:50
G01     77.8           33.3                5.0 +/-    0.80       8.3 +/-    0.80  0.030 / 0.030
G07     133.7          35.3                7.2 +/-    0.74      11.4 +/-    0.74  0.040 / 0.030
G11     57.0           33.5                3.6 +/-    0.56       5.9 +/-    0.56  0.040 / 0.080
G13     281.5          38.1                5.4 +/-    1.05       8.1 +/-    1.05  0.030 / 0.070
G15     310.9          11.4                2.2 +/-    1.32       5.9 +/-    1.32  0.060 / 0.110
G17     224.4          66.0                6.7 +/-    0.96       7.3 +/-    0.96  0.060 / 0.090
G18     52.4           19.7                4.0 +/-    0.79       9.0 +/-    0.79  0.060 / 0.110
G19     220.1          32.7                6.5 +/-    1.23      10.7 +/-    1.23  0.070 / 0.120
G28     6.5            60.8                3.8 +/-    0.39       4.3 +/-    0.39  0.080 / 0.210
G30     127.7          69.3                6.9 +/-    0.89       7.3 +/-    0.89  0.080 / 0.240