PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-07:27:30
G07     335.5          58.7                3.8 +/-    1.23       4.4 +/-    1.23  0.060 / 0.180
G08     96.5           51.3                7.8 +/-    0.50       9.6 +/-    0.50  0.060 / 0.140
G09     187.4          72.9                7.8 +/-    1.50       8.1 +/-    1.50  0.030 / 0.030
G11     144.6          12.8                4.9 +/-    2.73      12.8 +/-    2.73  0.030 / 0.030
G16     46.4           11.2                3.6 +/-    2.59       9.7 +/-    2.59  0.030 / 0.040
G23     156.0          43.7                7.7 +/-    0.76      10.6 +/-    0.76  0.040 / 0.040
G27     54.4           30.9                4.7 +/-    0.92       8.1 +/-    0.92  0.060 / 0.090
G28     237.5          30.0                6.3 +/-    0.96      11.0 +/-    0.96  0.080 / 0.090
G30     301.3          34.2                4.9 +/-    1.36       7.8 +/-    1.36  0.030 / 0.040