PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-17:12:40
G02     351.0          75.8              -19.9 +/-    0.68     -20.5 +/-    0.68  0.020 / 0.030
G05     162.6          38.0               10.9 +/-    0.84      16.3 +/-    0.84  0.030 / 0.030
G06     42.8           34.8                7.7 +/-    0.63      12.3 +/-    0.63  0.070 / 0.120
G12     301.6          75.3                8.7 +/-    0.53       9.0 +/-    0.53  0.060 / 0.110
G17     88.2           11.4                8.2 +/-    1.58      22.2 +/-    1.58  0.030 / 0.040
G19     80.0           22.5                7.6 +/-    1.06      15.7 +/-    1.06  0.030 / 0.030
G24     225.3          19.2               11.6 +/-    1.48      26.1 +/-    1.48  0.140 / 0.330
G25     316.0          32.5                8.8 +/-    0.87      14.7 +/-    0.87  0.120 / 0.280
G29     289.4          11.9               11.9 +/-    1.70      31.8 +/-    1.70  0.050 / 0.070