PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/08-04:57:30
G01     118.3          18.5                7.5 +/-    1.48      17.2 +/-    1.48  0.040 / 0.050
G07     83.6           65.5                4.9 +/-    0.52       5.3 +/-    0.52  0.040 / 0.050
G08     44.5           30.3                4.0 +/-    1.12       7.0 +/-    1.12  0.100 / 0.090
G09     177.1          25.5                6.9 +/-    1.12      13.3 +/-    1.12  0.100 / 0.120
G11     106.1          39.6                6.7 +/-    0.80       9.8 +/-    0.80  0.050 / 0.070
G13     317.9          18.9                1.3 +/-    1.56       3.0 +/-    1.56  0.080 / 0.160
G17     201.7          26.6                5.4 +/-    1.16      10.2 +/-    1.16  0.130 / 0.130
G28     295.7          58.1                3.3 +/-    1.26       3.8 +/-    1.26  0.130 / 0.160
G30     352.1          70.2                3.7 +/-    0.75       3.9 +/-    0.75  0.030 / 0.030