PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-06:27:50
G02     10.1           72.3                1.5 +/-    1.00       1.6 +/-    1.00  0.060 / 0.060
G05     159.8          41.1                5.0 +/-    1.41       7.2 +/-    1.41  0.030 / 0.080
G06     43.0           36.5               -0.1 +/-    1.06      -0.1 +/-    1.06  0.050 / 0.080
G12     296.7          75.7                1.6 +/-    1.28       1.7 +/-    1.28  0.080 / 0.080
G19     81.5           22.9                3.2 +/-    2.79       6.5 +/-    2.79  0.020 / 0.040
G24     224.1          18.2                4.1 +/-    1.76       9.4 +/-    1.76  0.020 / 0.040
G25     315.8          34.4                4.9 +/-    2.31       7.9 +/-    2.31  0.050 / 0.040
G29     291.8          14.0                3.8 +/-    1.98       9.8 +/-    1.98  0.040 / 0.040