PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-00:57:40
G01     320.6          12.3               -8.0 +/-   35.34     -21.2 +/-   35.34  0.030 / 0.020
G08     262.1          16.4               13.8 +/-    0.91      33.2 +/-    0.91  0.040 / 0.030
G10     67.2           57.5                9.9 +/-    0.74      11.5 +/-    0.74  0.200 / 0.220
G11     307.7          20.8                8.5 +/-    1.79      18.4 +/-    1.79  0.130 / 0.220
G14     280.1          69.4                8.2 +/-    0.57       8.7 +/-    0.57  0.230 / 0.640
G18     95.5           33.9               10.1 +/-    1.31      16.3 +/-    1.31  0.180 / 0.580
G21     154.4          10.1               11.5 +/-    3.59      32.0 +/-    3.59  0.070 / 0.060
G27     227.5          12.8               14.3 +/-    2.13      37.6 +/-    2.13  0.070 / 0.070
G31     179.4          32.5               13.6 +/-    1.49      22.7 +/-    1.49  0.110 / 0.200
G32     340.4          72.8                8.5 +/-    0.42       8.9 +/-    0.42  0.210 / 0.190