PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-15:13:10
G02     243.3          73.8                6.4 +/-    0.40       6.6 +/-    0.40  0.130 / 0.110
G05     172.1          16.4                7.1 +/-    2.40      17.0 +/-    2.40  0.130 / 0.130
G06     40.1           55.9                7.6 +/-    0.68       9.0 +/-    0.68  0.070 / 0.070
G12     321.3          53.4                7.9 +/-    0.53       9.6 +/-    0.53  0.070 / 0.070
G17     70.2           23.7                7.8 +/-    1.44      15.6 +/-    1.44  0.080 / 0.110
G19     59.4           36.0                8.8 +/-    1.68      13.7 +/-    1.68  0.080 / 0.110
G24     244.9          33.8               10.9 +/-    1.90      17.8 +/-    1.90  0.040 / 0.040
G25     316.4          12.5                2.7 +/-   20.61       7.3 +/-   20.61  0.040 / 0.030