PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/31-20:28:10
G08     313.2          17.1               12.3 +/-    2.82      29.2 +/-    2.82  0.060 / 0.080
G10     320.6          57.8               11.4 +/-    0.82      13.3 +/-    0.82  0.060 / 0.070
G14     215.5          26.8               14.9 +/-    4.50      28.0 +/-    4.50  0.030 / 0.050
G15     45.9           14.6                8.5 +/-    1.71      21.4 +/-    1.71  0.030 / 0.040
G18     31.0           61.1               11.7 +/-    0.50      13.2 +/-    0.50  0.060 / 0.110
G21     128.4          58.7               14.9 +/-    0.38      17.1 +/-    0.38  0.060 / 0.120
G24     81.8           30.4               13.1 +/-    0.80      22.8 +/-    0.80  0.070 / 0.200
G27     280.1          38.1               11.7 +/-    0.74      17.5 +/-    0.74  0.060 / 0.170
G32     219.4          44.5               16.3 +/-    1.53      22.1 +/-    1.53  0.040 / 0.060