PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-13:27:30
G07     47.8           68.3                8.1 +/-    1.10       8.7 +/-    1.10  0.150 / 0.150
G08     57.1           45.6                7.3 +/-    0.81       9.7 +/-    0.81  0.130 / 0.160
G09     179.5          43.6                9.7 +/-    0.66      13.4 +/-    0.66  0.080 / 0.140
G11     123.9          32.7                8.1 +/-    1.48      13.5 +/-    1.48  0.060 / 0.130
G18     107.8          13.7                7.6 +/-    1.45      19.5 +/-    1.45  0.030 / 0.030
G23     159.3          10.4                7.9 +/-    2.00      21.8 +/-    2.00  0.030 / 0.030
G27     38.5           12.7                5.3 +/-    2.99      14.0 +/-    2.99  0.090 / 0.170
G28     262.5          44.8                8.2 +/-    3.12      11.0 +/-    3.12  0.130 / 0.180
G30     329.0          57.8                7.4 +/-    0.64       8.5 +/-    0.64  0.140 / 0.370