PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/20-06:57:50
G01     292.2855       39.8023          4.0402 +/-  1.5668    5.8954 +/-  1.5668  0.050 / 0.070
G03     310.9936       13.8052          3.4321 +/-  1.1140    8.7856 +/-  1.1140  0.050 / 0.080
G10     118.3088       31.0180          4.1894 +/-  1.3985    7.1842 +/-  1.3985  0.080 / 0.170
G11     263.6515       27.7637          4.6308 +/-  1.4272    8.5055 +/-  1.4272  0.070 / 0.110
G14     24.7366        58.5020          2.5924 +/-  0.8518    2.9841 +/-  0.8518  0.110 / 0.170
G22     313.6633       38.4002          2.7546 +/-  1.1983    4.1149 +/-  1.1983  0.130 / 0.200
G25     64.1743        17.4238          3.0570 +/-  1.1120    7.1656 +/-  1.1120  0.050 / 0.070
G26     158.1145       11.5233          4.4400 +/-  2.0595   11.9825 +/-  2.0595  0.050 / 0.090
G31     135.2021       78.1978          4.2704 +/-  0.6298    4.3530 +/-  0.6298  0.040 / 0.090
G32     49.0966        43.5197          2.0788 +/-  0.3815    2.8622 +/-  0.3815  0.040 / 0.080