PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-00:42:30
G10     247.2          23.8               14.4 +/-    1.06      28.8 +/-    1.06  0.040 / 0.040
G13     57.4           32.0                9.5 +/-    1.44      16.0 +/-    1.44  0.030 / 0.050
G15     98.8           58.6               12.4 +/-    0.82      14.3 +/-    0.82  0.060 / 0.130
G16     298.4          16.0                8.6 +/-    2.25      20.8 +/-    2.25  0.050 / 0.120
G20     257.5          35.3               10.0 +/-    2.51      15.7 +/-    2.51  0.150 / 0.320
G21     327.8          56.7               10.8 +/-    0.55      12.6 +/-    0.55  0.150 / 0.280
G26     270.2          17.2               12.2 +/-    2.02      28.6 +/-    2.02  0.030 / 0.040
G29     164.1          55.7               12.3 +/-    0.55      14.6 +/-    0.55  0.030 / 0.030