PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-12:27:10
G02     33.4           54.9                5.1 +/-    0.60       6.0 +/-    0.60  0.030 / 0.030
G05     142.4          62.6                7.2 +/-    0.49       8.0 +/-    0.49  0.030 / 0.030
G06     54.4           15.1                2.8 +/-    3.06       7.0 +/-    3.06  0.040 / 0.040
G12     196.3          66.0                5.2 +/-    0.38       5.7 +/-    0.38  0.030 / 0.030
G19     100.3          10.9                5.7 +/-    1.94      15.5 +/-    1.94  0.030 / 0.030
G25     288.0          58.5                3.8 +/-    2.07       4.4 +/-    2.07  0.030 / 0.030
G29     308.8          29.8                3.9 +/-    2.05       6.9 +/-    2.05  0.150 / 0.210