PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-03:42:40
G02     59.0           32.6                6.6 +/-    1.77      10.9 +/-    1.77  0.150 / 0.280
G05     59.3           61.0                7.8 +/-    0.49       8.8 +/-    0.49  0.090 / 0.300
G12     185.4          34.7               10.1 +/-    1.53      16.1 +/-    1.53  0.070 / 0.090
G13     129.9          14.0                7.9 +/-    2.67      20.1 +/-    2.67  0.060 / 0.100
G15     164.3          11.0               -2.3 +/-   14.95      -6.2 +/-   14.95  0.030 / 0.030
G20     216.2          24.6                9.7 +/-    2.85      19.2 +/-    2.85  0.030 / 0.030
G21     269.9          16.2                9.8 +/-    2.52      23.7 +/-    2.52  0.070 / 0.090
G25     241.0          53.1                9.7 +/-    3.22      11.8 +/-    3.22  0.070 / 0.100
G29     326.9          52.5                9.1 +/-    1.79      11.1 +/-    1.79  0.150 / 0.470