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          6.6815 +/-  5.4590    9.7496 +/-  5.4590  0.030 / 0.040
G03     310.9936       13.8052          2.6458 +/-  3.5149    6.7728 +/-  3.5149  0.040 / 0.040
G10     118.3088       31.0180          2.7876 +/-  1.5509    4.7804 +/-  1.5509  0.060 / 0.080
G11     263.6515       27.7637          3.2667 +/-  2.5747    6.0000 +/-  2.5747  0.050 / 0.090
G14     24.7366        58.5020          3.0812 +/-  0.9547    3.5468 +/-  0.9547  0.050 / 0.080
G22     313.6633       38.4002          2.7498 +/-  1.9531    4.1076 +/-  1.9531  0.040 / 0.060
G25     64.1743        17.4238          3.2635 +/-  1.3733    7.6497 +/-  1.3733  0.040 / 0.050
G26     158.1145       11.5233          0.1828 +/-  8.8485    0.4933 +/-  8.8485  0.060 / 0.050
G31     135.2021       78.1978          4.7073 +/-  0.6093    4.7983 +/-  0.6093  0.040 / 0.070
G32     49.0966        43.5197          3.9617 +/-  0.8599    5.4546 +/-  0.8599  0.040 / 0.090