PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-15:43:00
G01     76.5           33.3                9.4 +/-    1.43      15.4 +/-    1.43  0.030 / 0.030
G07     134.5          35.5               11.9 +/-    0.79      18.8 +/-    0.79  0.030 / 0.030
G11     57.1           33.6                9.2 +/-    1.57      15.0 +/-    1.57  0.240 / 0.280
G13     280.4          37.9               10.3 +/-    1.77      15.5 +/-    1.77  0.170 / 0.360
G15     308.5          12.9                8.3 +/-    1.54      21.7 +/-    1.54  0.060 / 0.070
G17     225.9          64.2               12.5 +/-    0.99      13.7 +/-    0.99  0.050 / 0.070
G18     52.8           20.3                8.1 +/-    6.91      17.7 +/-    6.91  0.070 / 0.110
G19     220.8          34.9               11.8 +/-    2.47      18.8 +/-    2.47  0.070 / 0.120
G28     10.8           60.3               11.7 +/-    1.67      13.3 +/-    1.67  0.100 / 0.090
G30     129.5          67.1               12.1 +/-    0.74      13.0 +/-    0.74  0.080 / 0.100