PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-06:43:10
G01     127.3          11.3              -14.1 +/-   29.66     -38.2 +/-   29.66  0.170 / 0.000
G07     55.3           69.0                6.8 +/-    0.58       7.2 +/-    0.58  0.380 / 0.250
G08     49.4           37.6                5.4 +/-    0.85       8.1 +/-    0.85  0.040 / 0.040
G09     174.6          32.1                7.0 +/-    1.34      11.8 +/-    1.34  0.040 / 0.040
G11     116.8          35.5                9.0 +/-    1.67      14.2 +/-    1.67  0.020 / 0.030
G13     321.1          11.7               -6.8 +/-   10.56     -18.4 +/-   10.56  0.030 / 0.030
G17     198.9          16.5                6.0 +/-    3.16      14.3 +/-    3.16  0.220 / 0.430
G18     102.0          16.5                7.9 +/-    1.18      18.9 +/-    1.18  0.130 / 0.240
G28     274.1          51.7                7.8 +/-    2.96       9.6 +/-    2.96  0.120 / 0.270
G30     330.2          58.9                5.4 +/-    0.37       6.2 +/-    0.37  0.100 / 0.120