PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/27-11:12:30
G02     261.4          80.5                5.0 +/-    0.50       5.0 +/-    0.50  0.080 / 0.130
G05     170.9          19.4                5.7 +/-    1.21      12.7 +/-    1.21  0.090 / 0.140
G06     39.0           58.6                4.6 +/-    0.83       5.3 +/-    0.83  0.110 / 0.140
G12     320.9          55.0                4.2 +/-    0.92       5.0 +/-    0.92  0.160 / 0.090
G17     75.6           18.4                3.5 +/-    1.25       8.0 +/-    1.25  0.090 / 0.140
G19     62.9           34.6                3.8 +/-    1.20       6.0 +/-    1.20  0.100 / 0.160
G24     242.3          32.4                4.3 +/-    1.31       7.1 +/-    1.31  0.050 / 0.040
G25     317.5          16.9                3.1 +/-    1.80       7.3 +/-    1.80  0.040 / 0.030