PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-16:43:00
G01     54.2           28.0                7.8 +/-    2.71      14.2 +/-    2.71  0.040 / 0.030
G06     177.6          21.8               -6.9 +/-   38.23     -14.5 +/-   38.23  0.030 / 0.020
G07     144.7          16.9               10.3 +/-    2.38      24.5 +/-    2.38  0.060 / 0.050
G11     45.9           18.7                8.8 +/-    2.35      20.1 +/-    2.35  0.060 / 0.060
G13     255.5          32.8               10.0 +/-    1.95      16.6 +/-    1.95  0.050 / 0.060
G15     290.3          15.5                8.6 +/-    0.64      21.2 +/-    0.64  0.050 / 0.050
G17     285.0          78.4               11.9 +/-    0.85      12.1 +/-    0.85  0.130 / 0.130
G19     238.7          53.2               12.3 +/-    2.40      14.9 +/-    2.40  0.050 / 0.150
G28     45.2           54.7               12.5 +/-    1.04      14.9 +/-    1.04  0.090 / 0.140
G30     147.5          46.8               12.6 +/-    1.27      16.5 +/-    1.27  0.120 / 0.140