PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-16:28:10
G02     287.1          80.0                7.1 +/-    0.63       7.2 +/-    0.63  0.040 / 0.040
G05     168.1          25.7                9.5 +/-    1.19      18.2 +/-    1.19  0.040 / 0.050
G06     40.0           46.3                5.0 +/-    1.10       6.6 +/-    1.10  0.090 / 0.140
G12     318.9          63.1                6.3 +/-    0.93       7.0 +/-    0.93  0.100 / 0.180
G17     78.1           18.5                7.3 +/-    2.07      16.6 +/-    2.07  0.090 / 0.120
G19     68.7           30.0                7.1 +/-    1.48      12.4 +/-    1.48  0.120 / 0.160
G24     235.3          27.7                9.0 +/-    0.66      16.6 +/-    0.66  0.040 / 0.040
G25     317.4          21.1                5.3 +/-    2.22      11.3 +/-    2.22  0.060 / 0.060