PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-05:57:40
G07     49.5           69.4                4.6 +/-    0.41       4.9 +/-    0.41  0.040 / 0.050
G08     52.7           41.9                4.5 +/-    0.69       6.4 +/-    0.69  0.040 / 0.050
G09     176.4          36.6                7.1 +/-    1.09      10.9 +/-    1.09  0.060 / 0.110
G11     123.1          35.0                6.2 +/-    1.78       9.8 +/-    1.78  0.060 / 0.120
G13     321.1          11.3               -2.5 +/-   18.19      -6.9 +/-   18.19  0.120 / 0.510
G17     199.4          12.0                3.7 +/-    3.19       9.8 +/-    3.19  0.130 / 0.430
G28     265.7          45.3                3.7 +/-    1.90       4.9 +/-    1.90  0.030 / 0.030
G30     327.1          56.8                3.5 +/-    0.73       4.1 +/-    0.73  0.030 / 0.040