PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-20:12:40
G05     51.1           12.3                9.3 +/-    2.80      24.7 +/-    2.80  0.040 / 0.070
G10     240.7          19.4               16.4 +/-    3.10      36.8 +/-    3.10  0.050 / 0.080
G13     65.9           34.0               13.4 +/-    0.87      21.7 +/-    0.87  0.080 / 0.100
G15     113.4          56.3               16.3 +/-    0.46      19.1 +/-    0.46  0.070 / 0.110
G16     307.5          14.6               10.5 +/-    2.70      26.3 +/-    2.70  0.040 / 0.040
G20     255.7          42.8               16.6 +/-    2.12      23.1 +/-    2.12  0.030 / 0.040
G21     319.8          50.8               15.5 +/-    0.58      19.3 +/-    0.58  0.100 / 0.430
G26     280.3          19.2               14.6 +/-    0.92      32.9 +/-    0.92  0.120 / 0.590
G29     158.3          64.7               15.7 +/-    0.86      17.2 +/-    0.86  0.080 / 0.290