PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-10:27:50
G01     51.5           26.0                4.2 +/-    1.11       8.1 +/-    1.11  0.050 / 0.060
G06     177.1          22.4                5.8 +/-    1.78      12.0 +/-    1.78  0.040 / 0.070
G07     144.7          13.9                4.5 +/-    1.70      11.5 +/-    1.70  0.120 / 0.300
G11     45.7           19.5                0.9 +/-    1.22       2.1 +/-    1.22  0.120 / 0.270
G13     252.3          32.9                4.5 +/-    1.68       7.5 +/-    1.68  0.040 / 0.030
G15     286.9          15.9                2.7 +/-    3.17       6.6 +/-    3.17  0.030 / 0.030
G17     285.8          78.4                5.6 +/-    0.41       5.7 +/-    0.41  0.050 / 0.130
G19     241.6          59.4                7.8 +/-    0.82       8.9 +/-    0.82  0.070 / 0.170
G28     36.2           58.1                3.5 +/-    0.57       4.1 +/-    0.57  0.040 / 0.050
G30     148.8          46.5                6.8 +/-    1.17       9.0 +/-    1.17  0.050 / 0.050