PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-04:58:00
G08     277.0051       22.0165          4.6313 +/-  1.3502    9.7054 +/-  1.3502  0.030 / 0.010
G10     35.8116        62.4753          1.6350 +/-  0.8710    1.8188 +/-  0.8710  0.020 / 0.010
G11     316.3166       11.7781          3.5772 +/-  2.9904    9.5990 +/-  2.9904  0.090 / 0.180
G14     247.1885       59.9909          5.9583 +/-  0.6760    6.7671 +/-  0.6760  0.110 / 0.170
G18     78.3300        45.1809          3.1266 +/-  0.6862    4.2023 +/-  0.6862  0.100 / 0.070
G21     151.5988       26.7725          6.3847 +/-  0.9658   11.9857 +/-  0.9658  0.170 / 0.120
G24     46.2813        19.2738          3.7415 +/-  0.7776    8.3801 +/-  0.7776  0.030 / 0.010
G27     239.4595       23.0777          2.7886 +/-  1.7887    5.6982 +/-  1.7887  0.030 / 0.010
G31     180.3625       19.1559          4.7780 +/-  1.0353   10.7326 +/-  1.0353  0.060 / 0.160
G32     288.3472       75.3882          2.5676 +/-  0.8095    2.6443 +/-  0.8095  0.060 / 0.140