PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-20:58:10
G08     284.1          22.8                8.6 +/-    1.27      17.6 +/-    1.27  0.080 / 0.110
G10     23.6           63.1                8.1 +/-    1.96       8.9 +/-    1.96  0.080 / 0.090
G14     238.7          54.3               12.2 +/-    2.63      14.7 +/-    2.63  0.060 / 0.150
G18     74.2           45.9                9.3 +/-    0.89      12.3 +/-    0.89  0.090 / 0.150
G21     148.9          28.7               12.6 +/-    1.10      22.7 +/-    1.10  0.130 / 0.220
G24     50.3           22.6                8.5 +/-    3.38      17.5 +/-    3.38  0.020 / 0.020
G27     244.7          26.8               11.8 +/-    2.73      22.2 +/-    2.73  0.030 / 0.020
G31     184.2          10.8               -4.5 +/-   14.42     -12.3 +/-   14.42  0.120 / 0.110
G32     263.4          71.5               10.0 +/-    0.78      10.5 +/-    0.78  0.070 / 0.110