PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/25-08:12:50
G01     113.1          20.5                6.6 +/-    0.97      14.4 +/-    0.97  0.040 / 0.040
G07     93.6           62.5                7.1 +/-    0.67       7.9 +/-    0.67  0.040 / 0.030
G08     43.8           29.4                2.9 +/-    0.54       5.1 +/-    0.54  0.030 / 0.040
G09     175.3          20.7                6.7 +/-    1.16      14.4 +/-    1.16  0.030 / 0.040
G11     102.4          43.0                7.9 +/-    0.53      11.0 +/-    0.53  0.080 / 0.210
G13     314.6          24.3                3.1 +/-    1.42       6.1 +/-    1.42  0.090 / 0.230
G17     202.6          27.5                4.6 +/-    1.18       8.5 +/-    1.18  0.080 / 0.200
G18     88.5           22.5                4.9 +/-    1.73      10.2 +/-    1.73  0.080 / 0.220
G28     290.0          54.5                6.9 +/-    0.82       8.3 +/-    0.82  0.090 / 0.160
G30     350.4          71.5                6.6 +/-    0.91       6.9 +/-    0.91  0.080 / 0.160