PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-15:27:50
G01     116.9          18.6                9.1 +/-    1.74      20.8 +/-    1.74  0.110 / 0.080
G07     91.6           61.2               10.6 +/-    0.98      11.9 +/-    0.98  0.060 / 0.070
G08     44.6           31.1                7.0 +/-    1.61      12.0 +/-    1.61  0.040 / 0.070
G09     177.4          25.8                9.0 +/-    2.05      17.2 +/-    2.05  0.050 / 0.080
G11     103.8          41.3               10.0 +/-    0.71      14.2 +/-    0.71  0.030 / 0.050
G13     316.5          21.6                6.2 +/-    2.62      13.1 +/-    2.62  0.030 / 0.040
G17     201.8          24.8               11.1 +/-    3.45      21.7 +/-    3.45  0.110 / 0.310
G18     91.1           21.3                7.8 +/-    1.90      16.6 +/-    1.90  0.120 / 0.260
G28     287.5          54.5                8.7 +/-    1.68      10.4 +/-    1.68  0.090 / 0.220
G30     358.4          72.3                9.8 +/-    0.68      10.2 +/-    0.68  0.080 / 0.200