PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-08:57:40
G01     60.4           30.0                3.5 +/-    0.62       6.1 +/-    0.62  0.040 / 0.050
G06     179.3          13.7                4.5 +/-    2.51      11.4 +/-    2.51  0.040 / 0.050
G07     140.9          22.9                6.4 +/-    1.36      13.1 +/-    1.36  0.030 / 0.030
G11     49.6           27.5                2.2 +/-    0.74       4.1 +/-    0.74  0.030 / 0.030
G13     263.3          36.9                7.4 +/-    1.25      11.3 +/-    1.25  0.070 / 0.150
G15     295.0          16.4                2.7 +/-    1.17       6.5 +/-    1.17  0.070 / 0.150
G17     248.2          74.2                7.1 +/-    0.78       7.4 +/-    0.78  0.060 / 0.120
G19     229.9          51.3               10.3 +/-    1.09      12.8 +/-    1.09  0.060 / 0.120
G28     18.5           60.3                4.7 +/-    0.46       5.3 +/-    0.46  0.040 / 0.050
G30     143.1          56.8                7.5 +/-    0.71       8.7 +/-    0.71  0.040 / 0.050