PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-22:12:50
G10     264.1          35.7               12.2 +/-    1.20      19.1 +/-    1.20  0.130 / 0.430
G13     44.0           21.9               10.2 +/-    2.50      21.4 +/-    2.50  0.120 / 0.360
G15     62.7           51.0               13.8 +/-    0.99      17.2 +/-    0.99  0.170 / 0.650
G16     284.8          12.0               12.7 +/-    1.97      33.9 +/-    1.97  0.160 / 0.550
G18     295.1          63.4               11.4 +/-    0.61      12.6 +/-    0.61  0.040 / 0.050
G20     53.0           36.3               10.4 +/-    1.34      16.1 +/-    1.34  0.040 / 0.050
G21     359.9          70.9               12.7 +/-    0.99      13.4 +/-    0.99  0.110 / 0.140
G24     123.6          12.3                8.9 +/-   29.93      23.6 +/-   29.93  0.110 / 0.150
G27     318.9          18.3               10.0 +/-    0.53      22.9 +/-    0.53  0.050 / 0.100
G29     166.1          30.2               12.9 +/-    1.23      22.5 +/-    1.23  0.060 / 0.130