PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-00:43:00
G05     47.4875        22.0313          7.8336 +/-  0.5780   16.4101 +/-  0.5780  0.200 / 0.410
G13     81.4243        37.3749          8.6482 +/-  3.7501   13.1495 +/-  3.7501  0.240 / 0.450
G15     133.4319       49.1937          8.7741 +/-  4.7190   11.1769 +/-  4.7190  0.050 / 0.080
G16     317.7881       10.4722         -3.3728 +/- 16.1620   -9.3142 +/- 16.1620  0.040 / 0.100
G18     242.0574       38.0013        -39.9347 +/- 67.2912  -60.0642 +/- 67.2912  0.070 / 0.150
G20     27.3437        68.0220         16.1988 +/-  4.8112   17.3257 +/-  4.8112  0.070 / 0.160
G21     309.4166       44.7828          8.7605 +/-  1.1500   11.8416 +/-  1.1500  0.120 / 0.590
G25     197.6098       10.8856         13.7623 +/-  1.6766   37.6682 +/-  1.6766  0.110 / 0.580
G26     292.0597       20.1788         -0.9398 +/- 17.0056   -2.0588 +/- 17.0056  0.130 / 0.300
G29     152.6029       74.1912         13.2632 +/-  1.1367   13.7289 +/-  1.1367  0.140 / 0.280