PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-10:43:00
G01     117.4          17.9                3.6 +/-    1.60       8.3 +/-    1.60  0.030 / 0.030
G07     86.1           64.0                4.3 +/-    0.75       4.7 +/-    0.75  0.030 / 0.030
G08     46.2           35.4                3.7 +/-    0.68       5.8 +/-    0.68  0.220 / 0.140
G09     176.8          26.0                4.6 +/-    1.34       8.8 +/-    1.34  0.210 / 0.150
G11     107.0          41.2                4.5 +/-    1.03       6.4 +/-    1.03  0.030 / 0.040
G13     317.0          21.0                2.3 +/-    2.61       5.0 +/-    2.61  0.030 / 0.030
G17     202.2          21.4                4.0 +/-    2.35       8.4 +/-    2.35  0.130 / 0.280
G18     92.9           21.0                4.1 +/-    1.28       8.8 +/-    1.28  0.120 / 0.210
G28     284.0          53.1                3.5 +/-    1.62       4.2 +/-    1.62  0.150 / 0.170
G30     346.3          69.0                4.1 +/-    0.61       4.4 +/-    0.61  0.130 / 0.120