PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-11:43:10
G05     51.0           11.7                2.3 +/-    2.57       6.1 +/-    2.57  0.130 / 0.130
G10     239.7          15.8                4.5 +/-    1.46      11.0 +/-    1.46  0.130 / 0.100
G13     69.9           36.3                5.9 +/-    1.47       9.2 +/-    1.47  0.230 / 0.500
G15     112.0          55.1                7.5 +/-    0.63       8.9 +/-    0.63  0.180 / 0.460
G16     311.3          12.8                5.2 +/-    3.71      13.6 +/-    3.71  0.050 / 0.050
G20     25.8           65.8                4.9 +/-    0.50       5.3 +/-    0.50  0.040 / 0.040
G21     321.2          53.0                4.1 +/-    1.03       5.0 +/-    1.03  0.040 / 0.040
G26     282.6          19.6                5.0 +/-    1.87      11.2 +/-    1.87  0.030 / 0.040
G29     157.9          63.7                7.5 +/-    0.41       8.3 +/-    0.41  0.130 / 0.160