PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-13:27:40
G07     47.8           68.3                7.0 +/-    0.61       7.5 +/-    0.61  0.030 / 0.040
G08     57.1           45.6                5.7 +/-    0.52       7.7 +/-    0.52  0.030 / 0.040
G09     179.5          43.6               10.5 +/-    1.16      14.4 +/-    1.16  0.050 / 0.110
G11     123.9          32.7                8.6 +/-    1.10      14.3 +/-    1.10  0.060 / 0.090
G18     107.8          13.7                7.7 +/-    2.06      19.8 +/-    2.06  0.080 / 0.140
G23     159.3          10.4                8.2 +/-    2.46      22.7 +/-    2.46  0.070 / 0.130
G27     38.5           12.7                4.0 +/-    1.67      10.4 +/-    1.67  0.120 / 0.160
G28     262.5          44.8                5.5 +/-    0.82       7.5 +/-    0.82  0.130 / 0.180
G30     329.0          57.8                5.8 +/-    0.49       6.7 +/-    0.49  0.200 / 0.360