PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-14:27:40
G02     13.2           68.4                6.3 +/-    0.84       6.7 +/-    0.84  0.110 / 0.380
G05     159.9          45.7                8.8 +/-    0.75      11.8 +/-    0.75  0.130 / 0.610
G06     46.1           27.0                4.6 +/-    2.13       8.7 +/-    2.13  0.030 / 0.020
G12     248.3          80.6                7.3 +/-    0.85       7.4 +/-    0.85  0.030 / 0.020
G19     87.6           17.0                7.6 +/-    2.18      17.9 +/-    2.18  0.130 / 0.230
G24     219.8          13.5                8.3 +/-    2.37      21.3 +/-    2.37  0.090 / 0.140
G25     312.5          40.3                6.2 +/-    0.76       8.9 +/-    0.76  0.090 / 0.180
G29     295.5          16.7                6.1 +/-    2.59      14.6 +/-    2.59  0.120 / 0.120