PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-14:57:30
G02     29.1           58.3                7.2 +/-    0.61       8.3 +/-    0.61  0.050 / 0.040
G05     149.3          59.6                9.7 +/-    0.50      11.1 +/-    0.50  0.050 / 0.040
G06     53.4           15.9                5.9 +/-    2.74      14.4 +/-    2.74  0.030 / 0.040
G12     195.6          67.6                7.9 +/-    0.32       8.5 +/-    0.32  0.030 / 0.040
G19     98.0           13.4                7.9 +/-    1.90      20.5 +/-    1.90  0.170 / 0.200
G25     294.7          55.7                6.7 +/-    3.33       7.9 +/-    3.33  0.160 / 0.140
G29     306.6          27.0                7.7 +/-    2.14      14.3 +/-    2.14  0.120 / 0.270