PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-18:58:10
G10     261.5          34.1               14.5 +/-    1.38      23.4 +/-    1.38  0.140 / 0.340
G13     45.3           23.5               13.0 +/-    0.92      26.4 +/-    0.92  0.120 / 0.280
G15     64.8           51.6               15.0 +/-    0.41      18.6 +/-    0.41  0.040 / 0.060
G16     289.5          12.2               14.8 +/-    3.41      39.5 +/-    3.41  0.040 / 0.070
G18     291.7          63.1               13.9 +/-    0.73      15.4 +/-    0.73  0.090 / 0.460
G20     50.4           39.6               12.9 +/-    0.47      18.8 +/-    0.47  0.100 / 0.500
G21     359.4          70.2               16.2 +/-    0.66      17.1 +/-    0.66  0.040 / 0.050
G26     261.6          10.2               12.3 +/-    2.01      34.2 +/-    2.01  0.040 / 0.040
G27     320.0          16.1               13.0 +/-    1.15      31.4 +/-    1.15  0.060 / 0.180
G29     164.6          30.7               15.8 +/-    1.00      27.2 +/-    1.00  0.070 / 0.230