PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-22:27:50
G10     263.5          35.3               13.4 +/-    1.09      21.2 +/-    1.09  0.060 / 0.100
G13     44.4           22.4               10.5 +/-    2.22      21.9 +/-    2.22  0.090 / 0.120
G15     63.6           51.6               13.1 +/-    0.92      16.2 +/-    0.92  0.040 / 0.030
G16     285.2          12.2               13.4 +/-    1.96      35.6 +/-    1.96  0.040 / 0.030
G18     293.6          63.1               12.7 +/-    0.83      14.0 +/-    0.83  0.250 / 0.270
G20     52.6           36.7               11.3 +/-    1.14      17.5 +/-    1.14  0.220 / 0.330
G21     358.1          70.5               13.7 +/-    0.40      14.4 +/-    0.40  0.080 / 0.090
G24     124.1          12.0               13.8 +/-    3.22      36.8 +/-    3.22  0.050 / 0.080
G27     319.2          17.8               12.8 +/-    1.80      29.8 +/-    1.80  0.220 / 0.140
G29     166.1          31.0               12.0 +/-    1.33      20.6 +/-    1.33  0.100 / 0.140