PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-19:13:10
G05     50.0           14.8                9.9 +/-    1.53      24.8 +/-    1.53  0.060 / 0.070
G10     238.9          17.5               14.9 +/-    1.77      34.8 +/-    1.77  0.040 / 0.080
G13     69.0           34.6               11.8 +/-    0.62      18.9 +/-    0.62  0.050 / 0.130
G15     117.8          55.1               13.3 +/-    0.63      15.9 +/-    0.63  0.050 / 0.130
G16     309.7          14.1                8.9 +/-    1.79      22.6 +/-    1.79  0.100 / 0.340
G20     253.1          41.3               14.7 +/-    1.31      20.9 +/-    1.31  0.110 / 0.380
G21     317.4          49.1               12.7 +/-    0.69      16.3 +/-    0.69  0.050 / 0.050
G26     282.9          19.6               11.1 +/-    1.56      24.7 +/-    1.56  0.030 / 0.050
G29     156.8          67.9               13.3 +/-    0.99      14.3 +/-    0.99  0.110 / 0.260