PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-16:57:30
G02     260.4          78.1                9.0 +/-    0.64       9.1 +/-    0.64  0.170 / 0.410
G05     169.9          20.9                9.9 +/-    0.97      21.3 +/-    0.97  0.110 / 0.350
G06     39.7           51.7                7.6 +/-    0.50       9.4 +/-    0.50  0.040 / 0.040
G12     320.7          57.1                7.1 +/-    0.82       8.2 +/-    0.82  0.040 / 0.050
G17     73.4           22.0                7.1 +/-    1.46      14.8 +/-    1.46  0.120 / 0.140
G19     63.6           33.4                8.5 +/-    0.40      13.9 +/-    0.40  0.110 / 0.110
G24     240.1          31.1               11.1 +/-    0.84      19.0 +/-    0.84  0.060 / 0.200
G25     317.1          16.4                7.6 +/-    4.13      18.3 +/-    4.13  0.050 / 0.190