PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-13:43:10
G01     72.1           33.0                5.8 +/-    0.67       9.5 +/-    0.67  0.030 / 0.030
G07     136.7          32.0                8.2 +/-    1.43      13.8 +/-    1.43  0.030 / 0.030
G11     53.8           30.6                6.2 +/-    1.67      10.8 +/-    1.67  0.060 / 0.080
G13     275.6          37.8                7.5 +/-    2.08      11.3 +/-    2.08  0.050 / 0.090
G15     306.4          13.3                4.2 +/-    1.40      11.0 +/-    1.40  0.060 / 0.050
G17     231.7          69.3                8.5 +/-    0.69       9.0 +/-    0.69  0.060 / 0.070
G18     49.5           18.4                6.0 +/-    2.50      13.8 +/-    2.50  0.050 / 0.100
G19     223.1          37.5                9.1 +/-    2.19      13.8 +/-    2.19  0.080 / 0.100
G28     17.1           59.6                7.1 +/-    1.42       8.1 +/-    1.42  0.280 / 0.170
G30     134.2          64.5                7.8 +/-    0.38       8.6 +/-    0.38  0.230 / 0.170