PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-10:58:00
G01     52.6           26.7                3.5 +/-    2.19       6.5 +/-    2.19  0.140 / 0.390
G06     177.4          21.2               -2.7 +/-   27.61      -5.8 +/-   27.61  0.110 / 0.350
G07     144.2          14.9                4.5 +/-    1.85      11.4 +/-    1.85  0.030 / 0.030
G11     46.0           20.4                3.5 +/-    2.61       7.6 +/-    2.61  0.030 / 0.020
G13     253.7          33.5                5.5 +/-    1.61       9.0 +/-    1.61  0.100 / 0.090
G15     288.5          15.8                3.5 +/-    1.41       8.5 +/-    1.41  0.060 / 0.070
G17     277.8          77.8                5.9 +/-    0.78       6.0 +/-    0.78  0.100 / 0.250
G19     239.8          58.3                4.7 +/-    2.38       5.5 +/-    2.38  0.110 / 0.220
G28     34.3           58.4                5.4 +/-    1.11       6.2 +/-    1.11  0.040 / 0.060
G30     148.1          47.5                6.2 +/-    0.93       8.1 +/-    0.93  0.040 / 0.050