PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/30-09:43:10
G01     116.6          19.6                6.5 +/-    0.92      14.4 +/-    0.92  0.100 / 0.130
G07     89.5           63.3                5.5 +/-    0.96       6.1 +/-    0.96  0.100 / 0.140
G08     43.6           27.5                2.9 +/-    1.68       5.4 +/-    1.68  0.040 / 0.040
G09     175.5          22.1                5.8 +/-    1.03      12.1 +/-    1.03  0.030 / 0.040
G11     101.5          39.7                5.9 +/-    0.68       8.6 +/-    0.68  0.060 / 0.070
G13     317.4          19.7                3.1 +/-    0.79       7.0 +/-    0.79  0.060 / 0.070
G17     201.7          29.6                5.0 +/-    1.32       8.8 +/-    1.32  0.120 / 0.230
G28     298.7          58.5                3.6 +/-    0.80       4.2 +/-    0.80  0.100 / 0.270
G30     349.8          69.9                3.9 +/-    0.91       4.1 +/-    0.91  0.080 / 0.090