PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-01:43:00
G02     46.5           43.6               11.8 +/-    0.85      16.2 +/-    0.85  0.040 / 0.050
G05     96.1           68.8               11.8 +/-    0.86      12.6 +/-    0.86  0.040 / 0.070
G12     188.5          50.8               14.1 +/-    1.08      17.6 +/-    1.08  0.040 / 0.050
G25     270.2          58.1               14.6 +/-    0.49      16.9 +/-    0.49  0.030 / 0.040
G29     316.9          38.8               11.7 +/-    0.83      17.3 +/-    0.83  0.040 / 0.080