PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-16:57:40
G02     213.7          54.9               10.2 +/-    0.70      12.2 +/-    0.70  0.070 / 0.170
G06     69.1           76.9               10.0 +/-    0.24      10.3 +/-    0.24  0.080 / 0.180
G12     316.5          31.5                9.0 +/-    2.36      15.3 +/-    2.36  0.040 / 0.060
G17     51.8           37.3                8.9 +/-    1.11      13.5 +/-    1.11  0.050 / 0.070
G19     36.2           50.4                8.1 +/-    1.13      10.2 +/-    1.13  0.030 / 0.030
G24     270.9          41.8                9.9 +/-    2.89      14.0 +/-    2.89  0.030 / 0.020
G28     118.1          21.8                8.6 +/-    1.39      18.1 +/-    1.39  0.050 / 0.050