PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-09:43:00
G05     50.0           13.5                1.5 +/-    1.75       3.8 +/-    1.75  0.070 / 0.170
G10     237.8          13.8                3.3 +/-    2.38       8.5 +/-    2.38  0.130 / 0.180
G13     73.3           36.6                5.5 +/-    0.84       8.4 +/-    0.84  0.210 / 0.440
G15     117.4          53.8                5.6 +/-    0.35       6.8 +/-    0.35  0.310 / 0.400
G16     312.9          12.6                2.6 +/-    2.91       6.8 +/-    2.91  0.040 / 0.040
G20     19.5           69.7                3.6 +/-    0.27       3.8 +/-    0.27  0.050 / 0.040
G21     317.0          50.1                3.2 +/-    0.66       4.0 +/-    0.66  0.060 / 0.050
G26     284.7          20.2                2.2 +/-    2.67       4.9 +/-    2.67  0.040 / 0.060
G29     156.7          68.1                7.1 +/-    0.28       7.6 +/-    0.28  0.040 / 0.080