PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-18:58:00
G05     50.0           14.8                9.0 +/-    1.49      22.4 +/-    1.49  0.050 / 0.070
G13     68.8           34.5               11.5 +/-    1.45      18.4 +/-    1.45  0.050 / 0.070
G15     117.1          55.2               12.2 +/-    0.39      14.6 +/-    0.39  0.070 / 0.110
G16     309.5          14.2                8.1 +/-    3.61      20.6 +/-    3.61  0.050 / 0.110
G20     253.4          41.5               13.0 +/-    3.30      18.4 +/-    3.30  0.030 / 0.040
G21     317.5          49.3               10.3 +/-    0.79      13.1 +/-    0.79  0.030 / 0.040
G26     282.7          19.6                9.6 +/-    1.21      21.2 +/-    1.21  0.110 / 0.450
G29     156.9          67.8               13.2 +/-    0.77      14.2 +/-    0.77  0.080 / 0.500