PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-18:27:40
G02     55.9           37.3                9.7 +/-    0.90      14.8 +/-    0.90  0.150 / 0.490
G05     62.0           64.3                9.9 +/-    0.46      10.8 +/-    0.46  0.170 / 0.460
G12     182.3          31.0               11.9 +/-    1.11      20.4 +/-    1.11  0.030 / 0.040
G13     128.6          14.5               14.4 +/-    3.58      36.3 +/-    3.58  0.030 / 0.040
G21     270.5          16.4               12.5 +/-    3.91      30.1 +/-    3.91  0.050 / 0.110
G25     235.1          52.3                9.8 +/-    0.62      12.0 +/-    0.62  0.040 / 0.140
G29     327.1          52.7                9.2 +/-    0.85      11.3 +/-    0.85  0.150 / 0.410