PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/08-19:28:00
G05     49.6           15.5                7.6 +/-    1.91      18.6 +/-    1.91  0.040 / 0.070
G10     238.2          16.7               15.3 +/-    2.15      36.6 +/-    2.15  0.050 / 0.060
G13     70.3           34.8               10.4 +/-    0.34      16.5 +/-    0.34  0.050 / 0.130
G15     120.7          54.5               12.7 +/-    0.49      15.3 +/-    0.49  0.050 / 0.130
G16     310.8          13.8                9.2 +/-    1.83      23.6 +/-    1.83  0.030 / 0.050
G20     252.0          40.4               14.4 +/-    1.70      20.8 +/-    1.70  0.030 / 0.050
G21     316.3          48.4               11.6 +/-    0.77      15.0 +/-    0.77  0.120 / 0.390
G26     284.0          19.8               12.1 +/-    1.17      26.7 +/-    1.17  0.100 / 0.370
G29     156.0          69.1               12.7 +/-    0.86      13.5 +/-    0.86  0.080 / 0.170