PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-11:27:40
G10     249.6          25.3                4.0 +/-    1.12       7.7 +/-    1.12  0.100 / 0.340
G13     55.2           31.3                5.0 +/-    0.63       8.6 +/-    0.63  0.090 / 0.410
G15     86.0           56.7                6.2 +/-    0.32       7.2 +/-    0.32  0.030 / 0.040
G16     298.6          14.7                0.8 +/-    2.53       1.9 +/-    2.53  0.040 / 0.050
G20     37.3           54.7                4.0 +/-    0.42       4.8 +/-    0.42  0.030 / 0.050
G21     335.9          61.3                4.0 +/-    0.41       4.5 +/-    0.41  0.030 / 0.050
G26     269.3          16.0                5.4 +/-    2.20      13.1 +/-    2.20  0.030 / 0.050
G29     163.6          49.3                6.8 +/-    0.63       8.7 +/-    0.63  0.040 / 0.050