PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-15:42:50
G01     85.8           32.6                8.6 +/-    1.98      14.2 +/-    1.98  0.050 / 0.040
G07     128.8          42.4               10.8 +/-    0.78      15.1 +/-    0.78  0.060 / 0.050
G11     64.3           38.0                8.3 +/-    1.08      12.5 +/-    1.08  0.020 / 0.020
G13     290.1          37.1               12.4 +/-    2.48      18.9 +/-    2.48  0.030 / 0.020
G17     217.6          56.6               12.6 +/-    0.88      14.7 +/-    0.88  0.050 / 0.040
G18     59.9           22.9                8.7 +/-    1.96      17.9 +/-    1.96  0.040 / 0.050
G19     216.6          28.0               11.9 +/-    1.61      21.8 +/-    1.61  0.060 / 0.100
G28     356.3          61.4               11.1 +/-    0.92      12.5 +/-    0.92  0.110 / 0.120
G30     114.5          73.8               13.1 +/-    0.70      13.6 +/-    0.70  0.040 / 0.050