PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-08:12:50
G01     109.7          22.7                5.9 +/-    0.79      12.2 +/-    0.79  0.040 / 0.040
G07     100.5          60.0                6.2 +/-    0.90       7.0 +/-    0.90  0.030 / 0.040
G08     42.8           26.1                3.6 +/-    0.61       6.8 +/-    0.61  0.030 / 0.050
G09     174.7          17.1                4.7 +/-    0.93      11.1 +/-    0.93  0.030 / 0.050
G11     97.2           43.9                7.1 +/-    0.69       9.7 +/-    0.69  0.070 / 0.210
G13     312.3          27.0                5.1 +/-    1.12       9.6 +/-    1.12  0.060 / 0.210
G17     203.7          31.3                6.0 +/-    1.92      10.2 +/-    1.92  0.100 / 0.200
G18     84.5           23.4                3.9 +/-    0.83       7.8 +/-    0.83  0.090 / 0.200
G28     296.1          56.0                4.3 +/-    0.76       5.1 +/-    0.76  0.090 / 0.240
G30     358.5          74.5                4.9 +/-    0.67       5.1 +/-    0.67  0.100 / 0.240