PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-04:57:50
G03     197.6          36.4                8.0 +/-    0.62      12.4 +/-    0.62  0.080 / 0.140
G07     276.9          31.0                8.8 +/-    0.77      15.1 +/-    0.77  0.080 / 0.110
G08     153.3          14.5                5.5 +/-    2.41      13.9 +/-    2.41  0.070 / 0.110
G09     319.7          49.1                5.7 +/-    0.49       7.3 +/-    0.49  0.080 / 0.110
G16     51.5           50.8                6.0 +/-    0.91       7.5 +/-    0.91  0.050 / 0.040
G22     183.6          20.5                6.0 +/-    1.06      13.0 +/-    1.06  0.040 / 0.050
G23     19.0           80.4                4.2 +/-    0.63       4.3 +/-    0.63  0.050 / 0.040
G26     43.8           23.6                4.0 +/-    3.08       8.1 +/-    3.08  0.050 / 0.050
G27     116.1          25.2                8.4 +/-    1.93      16.4 +/-    1.93  0.120 / 0.190