PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/27-00:27:50
G01     283.7          41.1                8.2 +/-    0.82      11.7 +/-    0.82  0.040 / 0.070
G03     313.4          19.9                7.4 +/-    1.71      16.3 +/-    1.71  0.050 / 0.080
G10     123.6          25.3               10.6 +/-    0.95      20.5 +/-    0.95  0.040 / 0.030
G11     258.8          24.9               11.2 +/-    1.57      21.9 +/-    1.57  0.030 / 0.030
G14     33.1           54.9                7.2 +/-    0.61       8.5 +/-    0.61  0.070 / 0.100
G22     314.3          42.0                6.9 +/-    1.93       9.8 +/-    1.93  0.070 / 0.090
G25     60.0           18.0                6.3 +/-    0.68      14.5 +/-    0.68  0.050 / 0.110
G26     157.4          15.2               12.4 +/-    2.70      30.7 +/-    2.70  0.060 / 0.120
G31     127.7          81.6                8.7 +/-    1.03       8.8 +/-    1.03  0.040 / 0.050
G32     53.9           40.8                6.8 +/-    0.62       9.7 +/-    0.62  0.050 / 0.050