PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-14:12:50
G01     112.3          21.6                9.5 +/-    1.42      20.1 +/-    1.42  0.030 / 0.050
G07     99.7           58.7                9.8 +/-    1.14      11.3 +/-    1.14  0.030 / 0.050
G08     43.3           27.7                7.1 +/-    0.77      13.1 +/-    0.77  0.060 / 0.150
G09     176.5          20.8                8.7 +/-    1.67      18.7 +/-    1.67  0.150 / 0.110
G11     97.5           42.8                9.8 +/-    0.65      13.7 +/-    0.65  0.080 / 0.150
G13     313.7          25.4                8.4 +/-    1.62      16.4 +/-    1.62  0.100 / 0.190
G17     203.4          29.0                8.6 +/-    1.67      15.5 +/-    1.67  0.040 / 0.060
G18     86.1           22.8                6.6 +/-    1.73      13.5 +/-    1.73  0.040 / 0.060
G28     295.2          56.3                7.6 +/-    0.88       8.9 +/-    0.88  0.050 / 0.070
G30     8.1            75.1                8.4 +/-    0.67       8.7 +/-    0.67  0.040 / 0.080