PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-13:12:00
G02     44.2           45.9                0.5 +/-    0.52       0.7 +/-    0.52  0.050 / 0.050
G05     111.9          70.3                4.2 +/-    0.46       4.4 +/-    0.46  0.050 / 0.050
G12     188.5          52.0                4.6 +/-    1.47       5.7 +/-    1.47  0.050 / 0.050
G25     261.3          60.4                3.3 +/-    1.42       3.8 +/-    1.42  0.040 / 0.050
G29     317.2          39.3                3.4 +/-    1.26       5.0 +/-    1.26  0.030 / 0.030