PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-07:42:50
G01     128.1          10.7              -12.1 +/-   35.02     -33.2 +/-   35.02  0.040 / 0.050
G07     51.3           69.3                7.1 +/-    0.43       7.5 +/-    0.43  0.040 / 0.050
G08     50.3           38.6                5.3 +/-    0.53       7.9 +/-    0.53  0.030 / 0.040
G09     174.1          32.4                9.1 +/-    1.35      15.2 +/-    1.35  0.030 / 0.030
G11     118.1          34.8                8.2 +/-    1.22      13.1 +/-    1.22  0.100 / 0.220
G17     198.9          15.3                5.1 +/-    2.40      12.5 +/-    2.40  0.100 / 0.210
G18     103.3          16.0                6.6 +/-    1.12      15.9 +/-    1.12  0.200 / 0.380
G23     161.2          10.2                6.2 +/-    2.19      17.3 +/-    2.19  0.190 / 0.310
G28     272.7          51.2                8.3 +/-    0.99      10.3 +/-    0.99  0.170 / 0.360
G30     329.1          58.0                4.6 +/-    0.53       5.3 +/-    0.53  0.240 / 0.300