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 +/-    0.37       6.6 +/-    0.37  0.080 / 0.110
G05     172.1          16.4                7.7 +/-    1.36      18.4 +/-    1.36  0.090 / 0.130
G06     40.1           55.9                8.3 +/-    0.64       9.8 +/-    0.64  0.030 / 0.060
G12     321.3          53.4                9.3 +/-    1.43      11.2 +/-    1.43  0.040 / 0.050
G17     70.2           23.7                7.5 +/-    0.67      15.0 +/-    0.67  0.140 / 0.450
G19     59.4           36.0                6.6 +/-    0.32      10.2 +/-    0.32  0.140 / 0.360
G24     244.9          33.8               10.6 +/-    1.26      17.2 +/-    1.26  0.120 / 0.240
G25     316.4          12.5                7.3 +/-    3.43      19.4 +/-    3.43  0.110 / 0.200