PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-01:57:50
G08     254.3          12.2               10.3 +/-    2.04      27.4 +/-    2.04  0.030 / 0.030
G10     81.6           53.1                7.4 +/-    0.99       8.9 +/-    0.99  0.030 / 0.030
G11     300.2          25.3                5.2 +/-    1.01      10.1 +/-    1.01  0.120 / 0.210
G14     307.6          71.6                5.3 +/-    0.93       5.5 +/-    0.93  0.110 / 0.210
G18     103.0          28.3                6.8 +/-    1.07      12.3 +/-    1.07  0.040 / 0.040
G22     301.2          11.4                2.0 +/-    7.08       5.3 +/-    7.08  0.030 / 0.040
G31     177.5          42.3                8.3 +/-    0.89      11.7 +/-    0.89  0.050 / 0.060
G32     4.4            67.7                4.8 +/-    0.37       5.2 +/-    0.37  0.050 / 0.070