PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-12:13:10
G01     50.2           25.3                4.9 +/-    2.25       9.4 +/-    2.25  0.110 / 0.160
G06     176.9          23.9                5.6 +/-    1.66      11.1 +/-    1.66  0.170 / 0.200
G07     145.1          11.7                3.3 +/-    2.79       8.9 +/-    2.79  0.030 / 0.030
G11     45.1           17.6               -2.0 +/-    2.70      -4.6 +/-    2.70  0.030 / 0.030
G13     250.6          31.9                5.8 +/-    2.66       9.7 +/-    2.66  0.040 / 0.050
G15     285.9          15.5                5.0 +/-    1.81      12.3 +/-    1.81  0.040 / 0.040
G17     289.3          78.0                6.5 +/-    0.67       6.7 +/-    0.67  0.120 / 0.190
G19     244.2          60.6                6.1 +/-    0.85       6.9 +/-    0.85  0.110 / 0.240
G28     39.9           57.4                3.6 +/-    1.37       4.1 +/-    1.37  0.120 / 0.170
G30     149.3          43.7                6.0 +/-    0.55       8.2 +/-    0.55  0.120 / 0.180