PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-16:27:50
G01     50.4           25.7               11.2 +/-    1.48      21.5 +/-    1.48  0.040 / 0.080
G06     176.6          26.1               13.3 +/-    1.77      25.3 +/-    1.77  0.040 / 0.070
G07     146.2          12.9               13.6 +/-    3.05      35.5 +/-    3.05  0.060 / 0.120
G11     44.6           15.0                9.6 +/-    1.43      23.7 +/-    1.43  0.060 / 0.110
G13     250.7          30.6               13.1 +/-    0.96      22.7 +/-    0.96  0.040 / 0.070
G15     286.3          15.1                9.2 +/-    0.98      22.9 +/-    0.98  0.040 / 0.070
G17     310.4          78.6               11.2 +/-    0.62      11.4 +/-    0.62  0.120 / 0.330
G19     244.4          56.8               13.3 +/-    1.21      15.5 +/-    1.21  0.160 / 0.380
G28     51.8           53.1               10.9 +/-    0.52      13.3 +/-    0.52  0.170 / 0.430
G30     149.8          42.5               12.9 +/-    1.01      18.1 +/-    1.01  0.210 / 0.320