PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/22-03:12:50
G01     320.5          12.4                4.4 +/-   16.34      11.6 +/-   16.34  0.030 / 0.040
G08     261.8          16.4               11.1 +/-    1.60      26.7 +/-    1.60  0.030 / 0.040
G10     67.1           57.5                8.3 +/-    0.40       9.6 +/-    0.40  0.150 / 0.400
G11     307.2          21.4                7.4 +/-    2.16      15.7 +/-    2.16  0.240 / 0.490
G14     280.7          69.6                9.5 +/-    0.80      10.0 +/-    0.80  0.150 / 0.340
G18     95.0           34.7                7.7 +/-    0.71      12.4 +/-    0.71  0.140 / 0.260
G21     154.7          11.1                6.4 +/-    4.64      17.6 +/-    4.64  0.050 / 0.060
G27     227.5          12.7               11.2 +/-    4.27      29.5 +/-    4.27  0.050 / 0.060
G31     178.2          33.8               10.7 +/-    1.27      17.4 +/-    1.27  0.150 / 0.370
G32     345.3          72.5                9.8 +/-    0.45      10.2 +/-    0.45  0.120 / 0.380