PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-15:28:10
G01     54.1           27.7                8.0 +/-    0.92      14.6 +/-    0.92  0.040 / 0.100
G06     178.7          20.7               12.1 +/-    1.24      26.1 +/-    1.24  0.050 / 0.100
G07     144.2          13.8               11.4 +/-    2.31      29.2 +/-    2.31  0.030 / 0.030
G11     45.3           16.3                7.5 +/-    1.22      18.0 +/-    1.22  0.030 / 0.030
G13     257.9          32.6               12.4 +/-    1.17      20.6 +/-    1.17  0.120 / 0.280
G15     291.3          15.6                8.4 +/-    3.13      20.6 +/-    3.13  0.080 / 0.300
G17     302.2          80.0               12.5 +/-    0.51      12.7 +/-    0.51  0.040 / 0.060
G19     240.8          58.2               12.9 +/-    1.07      14.9 +/-    1.07  0.040 / 0.060
G28     45.5           54.5               11.2 +/-    1.16      13.4 +/-    1.16  0.070 / 0.150
G30     147.3          48.5               12.5 +/-    0.82      16.1 +/-    0.82  0.090 / 0.180