PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-05:12:50
G01     88.8           30.7                6.3 +/-    0.96      10.8 +/-    0.96  0.030 / 0.030
G07     124.2          46.3                7.0 +/-    1.14       9.3 +/-    1.14  0.030 / 0.030
G11     72.5           43.4                6.2 +/-    0.59       8.5 +/-    0.59  0.150 / 0.240
G13     294.6          37.1                7.3 +/-    3.20      11.2 +/-    3.20  0.110 / 0.210
G15     314.4          11.0               -4.1 +/-   16.11     -11.2 +/-   16.11  0.040 / 0.050
G17     212.2          52.7                2.6 +/-    0.42       3.2 +/-    0.42  0.050 / 0.060
G19     212.9          28.4                7.6 +/-    1.84      13.8 +/-    1.84  0.040 / 0.040
G28     328.7          60.6                4.9 +/-    0.66       5.5 +/-    0.66  0.060 / 0.040
G30     89.6           80.3                6.3 +/-    0.89       6.4 +/-    0.89  0.230 / 0.220