PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-00:28:00
G05     52.3           9.7                 7.4 +/-    3.12      20.6 +/-    3.12  0.180 / 0.330
G10     242.1          18.9               14.4 +/-    1.92      32.6 +/-    1.92  0.260 / 0.340
G13     64.8           34.6               10.5 +/-    1.11      16.7 +/-    1.11  0.050 / 0.060
G15     112.8          56.9               13.5 +/-    0.54      15.8 +/-    0.54  0.040 / 0.050
G16     305.0          15.4                7.8 +/-    1.06      19.2 +/-    1.06  0.060 / 0.110
G20     251.5          30.5               10.3 +/-    1.86      17.9 +/-    1.86  0.070 / 0.100
G21     320.8          52.1               11.3 +/-    0.67      13.9 +/-    0.67  0.100 / 0.330
G26     276.9          19.3               10.3 +/-    1.25      23.1 +/-    1.25  0.100 / 0.260
G29     161.5          63.4               11.6 +/-    0.34      12.8 +/-    0.34  0.040 / 0.040