PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-12:28:10
G02     212.8          53.8                5.7 +/-    0.80       6.9 +/-    0.80  0.050 / 0.080
G06     72.5           77.0                4.8 +/-    0.46       4.9 +/-    0.46  0.060 / 0.070
G12     316.6          32.7                3.7 +/-    1.81       6.1 +/-    1.81  0.050 / 0.090
G17     51.7           36.8                3.0 +/-    0.91       4.6 +/-    0.91  0.050 / 0.090
G19     35.2           50.9                3.6 +/-    0.63       4.5 +/-    0.63  0.030 / 0.030
G24     273.7          41.6                5.0 +/-    1.32       7.1 +/-    1.32  0.030 / 0.030
G28     116.7          23.9                4.9 +/-    1.11       9.7 +/-    1.11  0.030 / 0.050