PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-05:58:10
G07     316.0          51.7                5.0 +/-    1.06       6.2 +/-    1.06  0.050 / 0.050
G08     123.6          44.5                7.7 +/-    0.67      10.4 +/-    0.67  0.040 / 0.060
G09     257.1          83.9                7.3 +/-    0.45       7.4 +/-    0.45  0.050 / 0.060
G16     43.3           17.1                2.4 +/-    4.17       5.6 +/-    4.17  0.050 / 0.060
G23     148.4          55.6                7.0 +/-    0.75       8.3 +/-    0.75  0.030 / 0.020
G27     71.7           36.6                6.7 +/-    0.98      10.4 +/-    0.98  0.030 / 0.030
G28     226.5          11.0               -6.3 +/-   10.45     -17.1 +/-   10.45  0.050 / 0.060
G30     290.0          24.6                6.5 +/-    1.17      12.8 +/-    1.17  0.040 / 0.060