PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/01-21:13:10
G08     319.1          12.8                7.9 +/-    1.36      20.8 +/-    1.36  0.040 / 0.050
G10     307.3          54.9                8.6 +/-    0.79      10.2 +/-    0.79  0.050 / 0.050
G14     212.0          17.0               14.1 +/-    2.46      33.3 +/-    2.46  0.070 / 0.060
G15     46.0           26.9                9.2 +/-    2.06      17.3 +/-    2.06  0.070 / 0.080
G20     7.4            64.7               10.4 +/-    0.69      11.4 +/-    0.69  0.050 / 0.090
G21     113.4          69.4               11.3 +/-    0.79      12.0 +/-    0.79  0.050 / 0.070
G24     87.5           27.9               11.3 +/-    0.50      20.7 +/-    0.50  0.100 / 0.270
G27     294.6          35.7               10.5 +/-    1.46      16.4 +/-    1.46  0.090 / 0.300
G32     213.3          39.0               13.8 +/-    0.82      20.3 +/-    0.82  0.110 / 0.360