PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-07:42:40
G01     126.7          11.8               -2.7 +/-   29.80      -7.2 +/-   29.80  0.050 / 0.030
G07     56.9           69.0                6.5 +/-    0.54       7.0 +/-    0.54  0.040 / 0.030
G08     49.0           37.2                4.7 +/-    0.76       7.2 +/-    0.76  0.030 / 0.020
G09     174.0          30.6                6.2 +/-    2.32      10.7 +/-    2.32  0.030 / 0.030
G11     116.1          35.8                8.3 +/-    1.22      12.9 +/-    1.22  0.190 / 0.300
G13     320.9          12.3               -0.4 +/-   13.74      -1.0 +/-   13.74  0.300 / 0.320
G17     199.1          17.1                4.3 +/-    1.45      10.1 +/-    1.45  0.110 / 0.240
G18     101.6          16.8                6.1 +/-    1.42      14.6 +/-    1.42  0.110 / 0.210
G28     275.4          52.2                6.9 +/-    3.65       8.5 +/-    3.65  0.120 / 0.120
G30     331.1          59.5                4.7 +/-    0.51       5.4 +/-    0.51  0.130 / 0.110