PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-18:57:40
G08     320.1          11.5                8.5 +/-   15.18      23.0 +/-   15.18  0.050 / 0.090
G10     304.6          53.7               12.2 +/-    0.95      14.7 +/-    0.95  0.050 / 0.110
G14     211.8          17.5               13.8 +/-    2.36      32.2 +/-    2.36  0.040 / 0.050
G15     45.5           22.5                8.6 +/-    0.73      17.8 +/-    0.73  0.040 / 0.050
G18     13.2           64.4               10.1 +/-    0.48      11.0 +/-    0.48  0.060 / 0.130
G20     74.8           15.9                9.8 +/-    1.61      23.9 +/-    1.61  0.100 / 0.140
G21     114.6          66.3               13.2 +/-    0.68      14.3 +/-    0.68  0.110 / 0.500
G24     93.0           28.5               11.9 +/-    1.36      21.5 +/-    1.36  0.140 / 0.520
G27     292.7          36.9               13.4 +/-    1.00      20.5 +/-    1.00  0.090 / 0.300
G32     213.6          35.6               15.8 +/-    1.59      24.8 +/-    1.59  0.140 / 0.350