PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-06:57:40
G07     7.9            66.9                6.6 +/-    0.97       7.1 +/-    0.97  0.030 / 0.040
G08     73.1           51.8                6.8 +/-    0.79       8.4 +/-    0.79  0.030 / 0.030
G09     178.9          54.4                9.2 +/-    0.70      11.0 +/-    0.70  0.190 / 0.260
G11     135.8          24.8                8.5 +/-    1.61      16.7 +/-    1.61  0.190 / 0.180
G23     159.1          23.6                7.7 +/-    1.84      15.5 +/-    1.84  0.050 / 0.040
G27     43.0           21.2                4.7 +/-    2.49      10.1 +/-    2.49  0.050 / 0.030
G28     248.9          35.2                7.5 +/-    1.23      11.9 +/-    1.23  0.030 / 0.050
G30     314.1          45.3                5.0 +/-    0.91       6.7 +/-    0.91  0.040 / 0.040