PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-23:12:50
G10     279.9          44.3               13.1 +/-    1.13      17.8 +/-    1.13  0.040 / 0.040
G13     38.5           10.8               14.7 +/-    3.00      40.3 +/-    3.00  0.040 / 0.040
G15     50.5           40.1               16.3 +/-    0.91      23.6 +/-    0.91  0.100 / 0.140
G18     327.0          66.7               12.5 +/-    1.05      13.4 +/-    1.05  0.120 / 0.170
G20     62.9           25.8               14.1 +/-    1.37      27.0 +/-    1.37  0.120 / 0.210
G21     47.1           76.9               14.6 +/-    0.95      15.0 +/-    0.95  0.100 / 0.250
G24     111.5          20.5               16.6 +/-    1.22      36.0 +/-    1.22  0.060 / 0.130
G27     310.6          28.5               13.1 +/-    0.96      23.7 +/-    0.96  0.080 / 0.130
G29     167.2          16.3               18.7 +/-    0.78      45.0 +/-    0.78  0.140 / 0.610
G32     207.2          17.9               19.5 +/-    1.96      45.1 +/-    1.96  0.190 / 0.560