PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-12:12:50
G01     124.0          14.1                5.3 +/-    2.09      13.6 +/-    2.09  0.040 / 0.030
G07     64.5           68.7                4.7 +/-    0.41       5.0 +/-    0.41  0.040 / 0.030
G08     47.3           35.1                4.4 +/-    0.96       6.9 +/-    0.96  0.030 / 0.030
G09     176.1          30.0                5.1 +/-    1.07       8.9 +/-    1.07  0.030 / 0.030
G11     112.7          37.4                4.7 +/-    1.21       7.2 +/-    1.21  0.130 / 0.170
G13     319.9          15.0                3.4 +/-    3.19       8.4 +/-    3.19  0.130 / 0.210
G17     200.1          19.4                2.8 +/-    2.46       6.2 +/-    2.46  0.130 / 0.390
G18     99.6           18.4                4.7 +/-    2.03      10.7 +/-    2.03  0.210 / 0.290
G28     282.1          54.7                5.0 +/-    2.81       6.0 +/-    2.81  0.120 / 0.180
G30     335.6          62.7                4.2 +/-    0.36       4.7 +/-    0.36  0.100 / 0.170