PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-10:12:50
G01     127.3          11.3                4.2 +/-    2.54      11.4 +/-    2.54  0.030 / 0.040
G07     52.1           69.5                5.4 +/-    0.96       5.7 +/-    0.96  0.040 / 0.040
G08     49.4           37.4                2.9 +/-    0.52       4.4 +/-    0.52  0.030 / 0.030
G09     175.9          33.8                5.0 +/-    1.19       8.2 +/-    1.19  0.040 / 0.060
G11     116.8          35.2                6.3 +/-    1.34      10.0 +/-    1.34  0.100 / 0.340
G13     321.1          11.6               -2.1 +/-   14.18      -5.6 +/-   14.18  0.090 / 0.320
G17     199.0          16.4                4.0 +/-    1.33       9.5 +/-    1.33  0.100 / 0.290
G18     103.3          16.4                4.9 +/-    1.19      11.9 +/-    1.19  0.110 / 0.300
G28     275.1          52.5                6.2 +/-    0.48       7.6 +/-    0.48  0.110 / 0.350
G30     329.8          58.5                3.1 +/-    1.33       3.6 +/-    1.33  0.110 / 0.340