PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/09-15:13:10
G05     51.0           12.6                3.3 +/-    2.59       8.8 +/-    2.59  0.080 / 0.160
G10     240.1          16.1                6.0 +/-    1.41      14.6 +/-    1.41  0.270 / 0.120
G13     69.5           36.4                5.7 +/-    0.92       8.8 +/-    0.92  0.090 / 0.170
G15     111.4          55.3                5.7 +/-    0.29       6.7 +/-    0.29  0.080 / 0.130
G16     312.8          11.7                1.6 +/-   11.18       4.3 +/-   11.18  0.040 / 0.030
G18     252.6          48.5                7.1 +/-    4.51       9.1 +/-    4.51  0.030 / 0.040
G20     29.6           63.2                5.9 +/-    0.46       6.5 +/-    0.46  0.370 / 0.670
G21     324.2          55.0                4.0 +/-    0.61       4.8 +/-    0.61  0.230 / 0.450
G26     284.0          19.0                6.1 +/-    1.40      13.7 +/-    1.40  0.040 / 0.040
G29     156.9          60.7                6.9 +/-    0.67       7.8 +/-    0.67  0.040 / 0.040