PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/28-03:13:10
G08     307.9          20.0                5.7 +/-   13.58      12.6 +/-   13.58  0.100 / 0.070
G10     330.3          59.6                3.6 +/-    9.99       4.0 +/-    9.99  0.150 / 0.370
G14     218.3          32.8               11.0 +/-    8.15      18.2 +/-    8.15  0.040 / 0.020
G15     46.7           13.1                2.0 +/-    6.89       5.1 +/-    6.89  0.130 / 0.290
G18     36.0           60.3                7.1 +/-   23.17       8.1 +/-   23.17  0.060 / 0.050
G21     133.9          57.0                8.2 +/-    5.63       9.5 +/-    5.63  0.140 / 0.310
G24     75.3           30.6                5.4 +/-   10.71       9.4 +/-   10.71  0.050 / 0.060
G27     272.6          37.5                6.2 +/-   14.30       9.4 +/-   14.30  0.150 / 0.360
G32     223.7          51.6                7.9 +/-    6.90       9.7 +/-    6.90  0.100 / 0.170