PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-00:43:00
G10     245.8          22.5               14.4 +/-    2.72      29.7 +/-    2.72  0.040 / 0.050
G13     59.3           32.8                8.5 +/-    1.27      14.0 +/-    1.27  0.050 / 0.040
G15     102.7          58.4               11.3 +/-    0.67      13.0 +/-    0.67  0.090 / 0.130
G16     300.2          15.9                7.3 +/-    2.01      17.8 +/-    2.01  0.060 / 0.120
G20     256.0          34.6               14.4 +/-    3.77      23.0 +/-    3.77  0.140 / 0.440
G21     325.9          55.4               10.3 +/-    0.46      12.2 +/-    0.46  0.110 / 0.420
G26     272.0          17.9               11.7 +/-    1.54      27.1 +/-    1.54  0.040 / 0.040
G29     163.5          57.8               11.9 +/-    0.52      13.8 +/-    0.52  0.030 / 0.030