PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-14:28:00
G01     86.5           32.5                8.9 +/-    0.97      14.8 +/-    0.97  0.020 / 0.030
G07     128.2          42.8               10.4 +/-    0.94      14.5 +/-    0.94  0.030 / 0.030
G11     64.6           38.0                6.9 +/-    0.45      10.4 +/-    0.45  0.060 / 0.100
G13     290.8          37.0                9.4 +/-    0.66      14.4 +/-    0.66  0.080 / 0.110
G17     216.9          56.9               10.9 +/-    0.55      12.7 +/-    0.55  0.050 / 0.060
G18     60.4           23.0                6.6 +/-    1.13      13.6 +/-    1.13  0.050 / 0.050
G19     216.3          27.0                8.7 +/-    0.81      16.2 +/-    0.81  0.060 / 0.090
G28     354.8          61.5                8.6 +/-    1.00       9.7 +/-    1.00  0.060 / 0.090
G30     112.1          74.8                9.6 +/-    1.11       9.9 +/-    1.11  0.040 / 0.070