PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-00:57:20
G02     37.5           51.2                9.6 +/-    1.20      11.9 +/-    1.20  0.030 / 0.020
G05     127.0          65.7               11.3 +/-    0.58      12.2 +/-    0.58  0.020 / 0.030
G06     55.2           14.4                8.8 +/-    2.78      22.2 +/-    2.78  0.040 / 0.050
G12     198.8          65.2               11.6 +/-    0.53      12.7 +/-    0.53  0.040 / 0.050
G25     289.3          56.2                9.8 +/-    4.03      11.5 +/-    4.03  0.030 / 0.030
G29     312.1          34.3                8.9 +/-    0.84      14.4 +/-    0.84  0.030 / 0.030