PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-09:27:50
G01     47.7           23.4                2.8 +/-    0.55       5.7 +/-    0.55  0.040 / 0.070
G06     176.1          26.7                6.6 +/-    1.02      12.5 +/-    1.02  0.040 / 0.060
G07     146.1          10.4                5.1 +/-    1.35      14.0 +/-    1.35  0.030 / 0.030
G11     44.7           16.3                2.3 +/-    1.93       5.5 +/-    1.93  0.040 / 0.040
G13     247.7          30.5                7.4 +/-    1.06      12.8 +/-    1.06  0.150 / 0.260
G15     281.8          15.5                5.3 +/-    1.54      13.0 +/-    1.54  0.110 / 0.300
G17     313.6          78.6                6.4 +/-    0.81       6.5 +/-    0.81  0.070 / 0.160
G19     249.0          63.2                6.7 +/-    1.04       7.4 +/-    1.04  0.080 / 0.150
G28     43.2           57.0                4.7 +/-    0.58       5.4 +/-    0.58  0.040 / 0.070
G30     151.1          42.6                7.7 +/-    0.75      10.7 +/-    0.75  0.040 / 0.050