PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/04-20:12:50
G08     313.1          17.1               13.1 +/-    2.00      30.9 +/-    2.00  0.070 / 0.070
G10     320.9          57.8               10.8 +/-    0.80      12.5 +/-    0.80  0.060 / 0.070
G14     215.6          26.9               15.9 +/-    2.13      29.8 +/-    2.13  0.050 / 0.040
G15     46.0           14.4               10.6 +/-    1.77      26.7 +/-    1.77  0.040 / 0.040
G18     31.4           61.0               13.4 +/-    1.47      15.1 +/-    1.47  0.140 / 0.460
G20     82.0           9.4                14.6 +/-    3.04      41.4 +/-    3.04  0.160 / 0.550
G21     128.7          58.4               15.1 +/-    0.41      17.4 +/-    0.41  0.060 / 0.080
G24     81.6           30.4               12.2 +/-    1.32      21.2 +/-    1.32  0.050 / 0.080
G27     279.9          38.1               12.6 +/-    2.12      18.9 +/-    2.12  0.070 / 0.060
G32     219.5          44.8               15.1 +/-    1.74      20.4 +/-    1.74  0.140 / 0.050