PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-09:42:50
G07     355.8          64.6                3.9 +/-    1.04       4.3 +/-    1.04  0.150 / 0.110
G08     88.7           54.3                4.2 +/-    0.53       5.0 +/-    0.53  0.160 / 0.080
G09     183.0          63.4                5.1 +/-    0.71       5.6 +/-    0.71  0.030 / 0.040
G11     139.8          20.3                5.7 +/-    2.15      12.4 +/-    2.15  0.040 / 0.040
G23     157.1          28.7                4.8 +/-    1.26       8.6 +/-    1.26  0.040 / 0.030
G27     47.5           26.3                2.0 +/-    1.93       3.7 +/-    1.93  0.040 / 0.030
G28     243.0          30.9                5.3 +/-    1.11       9.1 +/-    1.11  0.040 / 0.040
G30     309.7          41.9                3.3 +/-    1.03       4.6 +/-    1.03  0.040 / 0.040