PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-11:27:50
G01     115.8          20.1                6.0 +/-    1.34      13.2 +/-    1.34  0.030 / 0.040
G07     91.9           62.3                6.9 +/-    0.63       7.6 +/-    0.63  0.030 / 0.030
G08     43.4           26.6                5.6 +/-    1.02      10.6 +/-    1.02  0.020 / 0.040
G09     174.7          20.4                7.4 +/-    2.43      16.1 +/-    2.43  0.020 / 0.040
G11     99.7           39.7                7.4 +/-    1.05      10.8 +/-    1.05  0.110 / 0.160
G13     317.1          20.1                4.0 +/-    1.90       8.7 +/-    1.90  0.100 / 0.210
G17     201.9          30.6                7.7 +/-    1.49      13.4 +/-    1.49  0.060 / 0.100
G28     300.0          58.7                5.1 +/-    1.00       5.8 +/-    1.00  0.060 / 0.100
G30     349.9          70.1                4.5 +/-    0.88       4.8 +/-    0.88  0.050 / 0.120