PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-14:12:50
G01     120.5          16.9               10.5 +/-    1.50      25.0 +/-    1.50  0.030 / 0.040
G07     76.2           67.4                8.4 +/-    0.63       9.0 +/-    0.63  0.030 / 0.030
G08     45.6           32.7                6.5 +/-    1.27      10.9 +/-    1.27  0.120 / 0.170
G09     176.2          26.4                8.7 +/-    1.08      16.4 +/-    1.08  0.110 / 0.170
G11     108.4          39.3                9.8 +/-    0.94      14.4 +/-    0.94  0.030 / 0.030
G13     318.4          18.3                6.3 +/-    2.76      14.3 +/-    2.76  0.020 / 0.030
G17     201.4          22.5                9.3 +/-    1.71      19.2 +/-    1.71  0.110 / 0.220
G18     95.7           20.2                8.8 +/-    1.38      19.3 +/-    1.38  0.100 / 0.190
G28     289.7          56.7                7.9 +/-    1.33       9.2 +/-    1.33  0.150 / 0.190
G30     342.7          66.8                8.2 +/-    0.45       8.8 +/-    0.45  0.110 / 0.200