PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-22:42:50
G10     261.0          33.6               19.9 +/-    2.10      32.4 +/-    2.10  0.110 / 0.100
G13     45.8           24.2               16.3 +/-    1.76      32.5 +/-    1.76  0.100 / 0.080
G15     67.2           53.3               18.7 +/-    0.56      22.7 +/-    0.56  0.030 / 0.030
G16     287.3          12.8               16.4 +/-    1.07      43.0 +/-    1.07  0.040 / 0.030
G18     288.5          61.9               17.3 +/-    1.00      19.3 +/-    1.00  0.230 / 0.350
G20     51.0           38.5               15.7 +/-    0.96      23.4 +/-    0.96  0.080 / 0.070
G21     352.6          68.8               19.2 +/-    0.52      20.4 +/-    0.52  0.060 / 0.070
G24     126.0          10.5              -12.2 +/-   37.20     -33.8 +/-   37.20  0.120 / 0.160
G27     320.1          15.8               15.5 +/-    2.11      37.8 +/-    2.11  0.240 / 0.230
G29     165.9          33.8               23.9 +/-    1.46      38.8 +/-    1.46  0.050 / 0.080