PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-13:58:00
G01     124.4          12.7                8.3 +/-    2.45      21.7 +/-    2.45  0.030 / 0.040
G07     70.0           66.4                7.5 +/-    0.27       8.1 +/-    0.27  0.030 / 0.050
G08     49.9           39.5                6.0 +/-    0.78       8.8 +/-    0.78  0.060 / 0.080
G09     178.5          35.1                8.8 +/-    1.72      13.9 +/-    1.72  0.040 / 0.080
G11     115.5          37.3                9.1 +/-    0.86      13.8 +/-    0.86  0.050 / 0.110
G13     320.1          14.4                5.2 +/-    1.97      13.2 +/-    1.97  0.060 / 0.120
G17     200.3          15.0                7.6 +/-    3.23      18.9 +/-    3.23  0.100 / 0.330
G18     100.5          17.6                7.9 +/-    1.62      18.5 +/-    1.62  0.130 / 0.280
G28     273.1          49.6                8.1 +/-    1.12      10.3 +/-    1.12  0.110 / 0.260
G30     339.1          64.4                6.9 +/-    0.79       7.6 +/-    0.79  0.130 / 0.250