PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-13:43:10
G01     125.0          12.3                7.3 +/-    2.70      19.3 +/-    2.70  0.090 / 0.080
G07     67.8           66.7                9.0 +/-    0.32       9.7 +/-    0.32  0.090 / 0.110
G08     50.5           40.2                6.7 +/-    0.65       9.8 +/-    0.65  0.060 / 0.100
G09     178.6          35.9                9.2 +/-    0.86      14.4 +/-    0.86  0.060 / 0.100
G11     116.5          36.9                9.1 +/-    1.09      14.0 +/-    1.09  0.030 / 0.030
G13     320.3          13.8                5.5 +/-    1.73      14.0 +/-    1.73  0.030 / 0.030
G17     200.3          14.2                5.0 +/-    4.16      12.7 +/-    4.16  0.190 / 0.370
G18     101.2          17.3                7.4 +/-    1.89      17.4 +/-    1.89  0.130 / 0.320
G28     272.0          49.1                7.7 +/-    3.02       9.8 +/-    3.02  0.090 / 0.230
G30     337.7          63.6                7.4 +/-    0.48       8.2 +/-    0.48  0.100 / 0.220