PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-21:42:40
G08     302.3          21.0               10.8 +/-    2.15      23.1 +/-    2.15  0.070 / 0.080
G10     357.4          62.4               10.6 +/-    0.69      11.8 +/-    0.69  0.070 / 0.090
G14     223.9          37.8               13.4 +/-    0.93      20.2 +/-    0.93  0.040 / 0.070
G20     57.4           54.6               11.4 +/-    0.49      13.6 +/-    0.49  0.050 / 0.080
G21     143.1          47.7               12.9 +/-    1.34      16.7 +/-    1.34  0.060 / 0.140
G24     63.7           28.8                9.1 +/-    0.83      16.4 +/-    0.83  0.090 / 0.170
G27     261.9          35.0               13.9 +/-    0.79      22.0 +/-    0.79  0.110 / 0.330
G32     234.2          62.9               15.0 +/-    0.80      16.6 +/-    0.80  0.100 / 0.330