PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-23:57:50
G01     298.6          38.0               11.5 +/-    0.94      17.3 +/-    0.94  0.060 / 0.090
G03     309.3          11.0               -8.2 +/-   37.46     -22.4 +/-   37.46  0.070 / 0.100
G10     114.4          33.1               10.2 +/-    0.98      16.7 +/-    0.98  0.080 / 0.100
G11     270.7          27.5               10.3 +/-    1.38      19.1 +/-    1.38  0.070 / 0.080
G14     13.5           62.6                9.7 +/-    0.73      10.8 +/-    0.73  0.050 / 0.050
G18     260.2          49.9               10.5 +/-    0.54      13.2 +/-    0.54  0.050 / 0.070
G22     312.3          32.0                9.0 +/-    1.19      15.1 +/-    1.19  0.070 / 0.190
G25     70.3           17.3                6.7 +/-    1.11      15.8 +/-    1.11  0.080 / 0.190
G31     154.2          73.8               12.1 +/-    0.98      12.5 +/-    0.98  0.070 / 0.210
G32     45.5           45.8                8.4 +/-    0.81      11.2 +/-    0.81  0.060 / 0.170