PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-20:58:10
G05     49.1           18.8               14.5 +/-    1.02      32.8 +/-    1.02  0.120 / 0.240
G10     238.1          13.6               26.8 +/-    2.15      69.0 +/-    2.15  0.140 / 0.260
G13     74.1           37.3               19.7 +/-    0.66      30.0 +/-    0.66  0.170 / 0.550
G15     120.4          53.7               23.9 +/-    0.75      28.8 +/-    0.75  0.140 / 0.610
G16     314.6          11.4               16.1 +/-    2.90      43.5 +/-    2.90  0.060 / 0.170
G18     248.2          44.3               25.9 +/-    1.99      35.3 +/-    1.99  0.060 / 0.180
G20     30.7           63.4               20.9 +/-    0.91      23.0 +/-    0.91  0.130 / 0.500
G21     316.5          49.8               22.6 +/-    0.98      28.6 +/-    0.98  0.180 / 0.340
G26     288.1          19.1               20.6 +/-    1.52      46.3 +/-    1.52  0.050 / 0.070
G29     155.6          64.8               23.1 +/-    1.03      25.2 +/-    1.03  0.040 / 0.080