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               13.3 +/-    3.09      26.7 +/-    3.09  0.170 / 0.770
G13     57.4           32.0               10.1 +/-    0.65      17.0 +/-    0.65  0.170 / 0.770
G15     98.8           58.6               12.6 +/-    0.71      14.5 +/-    0.71  0.040 / 0.060
G16     298.4          16.0                9.1 +/-    2.72      22.2 +/-    2.72  0.040 / 0.060
G20     257.5          35.3               14.9 +/-    0.89      23.5 +/-    0.89  0.070 / 0.190
G21     327.8          56.7               10.4 +/-    0.99      12.2 +/-    0.99  0.070 / 0.170
G26     270.2          17.2               12.9 +/-    2.31      30.4 +/-    2.31  0.030 / 0.050
G29     164.1          55.7               13.1 +/-    0.87      15.5 +/-    0.87  0.040 / 0.060