PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-10:42:30
G07     38.7           68.7                7.1 +/-    0.72       7.6 +/-    0.72  0.130 / 0.260
G08     55.4           42.9                6.2 +/-    0.96       8.5 +/-    0.96  0.160 / 0.360
G09     176.6          41.2                8.8 +/-    0.93      12.6 +/-    0.93  0.040 / 0.040
G11     122.8          30.3                9.4 +/-    1.49      16.3 +/-    1.49  0.030 / 0.040
G17     198.6          10.6               -7.2 +/-    8.19     -19.8 +/-    8.19  0.040 / 0.030
G23     161.1          15.7                7.0 +/-    1.35      17.0 +/-    1.35  0.030 / 0.030
G27     38.3           11.7                4.4 +/-    1.87      11.7 +/-    1.87  0.050 / 0.040
G28     266.7          49.2                8.1 +/-    4.27      10.3 +/-    4.27  0.050 / 0.040
G30     324.1          53.4                5.8 +/-    1.32       7.0 +/-    1.32  0.140 / 0.200