PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-20:28:10
G02     221.0          65.1               14.1 +/-    1.18      15.4 +/-    1.18  0.120 / 0.440
G06     49.2           71.1               11.5 +/-    0.35      12.0 +/-    0.35  0.120 / 0.410
G12     318.9          38.2               10.0 +/-    1.77      15.0 +/-    1.77  0.040 / 0.050
G17     60.4           30.1               12.4 +/-    1.71      21.7 +/-    1.71  0.040 / 0.040
G19     45.3           45.2               11.3 +/-    1.00      15.2 +/-    1.00  0.060 / 0.110
G24     258.5          40.0               14.2 +/-    3.29      20.6 +/-    3.29  0.110 / 0.100
G28     124.3          14.6               13.0 +/-    1.50      32.6 +/-    1.50  0.060 / 0.090