PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-04:27:40
G03     197.1          35.2                5.2 +/-    1.66       8.2 +/-    1.66  0.070 / 0.130
G07     278.0          31.5                5.6 +/-    1.79       9.5 +/-    1.79  0.090 / 0.130
G08     152.2          15.7                6.5 +/-    2.80      15.8 +/-    2.80  0.090 / 0.120
G09     320.1          50.7                5.0 +/-    1.06       6.3 +/-    1.06  0.070 / 0.140
G16     50.3           49.7                4.3 +/-    0.82       5.4 +/-    0.82  0.040 / 0.040
G22     183.3          19.4                4.7 +/-    0.95      10.5 +/-    0.95  0.040 / 0.050
G23     23.7           81.1                2.8 +/-    0.71       2.9 +/-    0.71  0.050 / 0.050
G26     43.7           22.5                2.2 +/-    2.18       4.6 +/-    2.18  0.050 / 0.050
G27     114.8          26.0                6.0 +/-    1.11      11.5 +/-    1.11  0.130 / 0.180