PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-09:57:40
G01     83.7           32.0                4.3 +/-    1.35       7.3 +/-    1.35  0.030 / 0.050
G07     128.9          40.1                6.2 +/-    0.38       9.1 +/-    0.38  0.030 / 0.060
G11     64.8           39.8                4.0 +/-    0.92       5.9 +/-    0.92  0.060 / 0.060
G13     288.7          38.3               -0.0 +/-    1.69      -0.1 +/-    1.69  0.040 / 0.050
G15     313.0          11.1               -1.2 +/-   12.52      -3.2 +/-   12.52  0.150 / 0.120
G17     216.7          55.1                5.9 +/-    0.82       7.0 +/-    0.82  0.090 / 0.160
G18     59.0           22.8                3.5 +/-    1.96       7.3 +/-    1.96  0.150 / 0.250
G19     215.4          32.7                3.3 +/-    1.56       5.5 +/-    1.56  0.300 / 0.230
G28     341.3          61.4                4.2 +/-    0.61       4.7 +/-    0.61  0.030 / 0.030
G30     114.8          74.7                6.0 +/-    1.32       6.2 +/-    1.32  0.030 / 0.030