PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-14:12:30
G02     201.6          21.0                8.0 +/-    2.35      17.1 +/-    2.35  0.030 / 0.040
G06     167.5          57.6                8.2 +/-    0.67       9.5 +/-    0.67  0.030 / 0.040
G13     223.8          11.4                7.0 +/-    1.51      18.9 +/-    1.51  0.090 / 0.130
G17     20.0           60.4                8.1 +/-    0.68       9.2 +/-    0.68  0.080 / 0.130
G19     337.4          70.4                7.2 +/-    0.78       7.6 +/-    0.78  0.040 / 0.040
G24     308.2          30.8                5.8 +/-    1.04      10.0 +/-    1.04  0.040 / 0.040
G28     86.5           43.4                9.1 +/-    1.36      12.5 +/-    1.36  0.170 / 0.190
G30     157.5          12.0                7.4 +/-    2.45      19.8 +/-    2.45  0.150 / 0.220