PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-06:27:50
G07     350.2          63.5                5.8 +/-    0.65       6.4 +/-    0.65  0.030 / 0.040
G08     87.0           53.2                6.5 +/-    0.54       7.8 +/-    0.54  0.030 / 0.030
G09     180.9          63.4                7.1 +/-    0.52       7.9 +/-    0.52  0.050 / 0.120
G11     141.6          19.3                5.7 +/-    2.20      12.7 +/-    2.20  0.070 / 0.120
G23     157.6          31.9                5.7 +/-    1.79       9.6 +/-    1.79  0.040 / 0.030
G27     48.2           26.8                4.2 +/-    1.46       7.8 +/-    1.46  0.040 / 0.030
G28     241.6          29.1                6.9 +/-    1.52      12.3 +/-    1.52  0.060 / 0.080
G30     307.5          39.4                4.3 +/-    1.19       6.3 +/-    1.19  0.100 / 0.110