PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-19:28:10
G02     217.9          61.6               15.6 +/-    1.17      17.5 +/-    1.17  0.100 / 0.050
G06     54.5           73.5               12.6 +/-    1.08      13.1 +/-    1.08  0.110 / 0.050
G12     318.1          35.5               11.0 +/-    1.81      17.2 +/-    1.81  0.130 / 0.450
G17     57.5           32.4               10.3 +/-    0.44      17.1 +/-    0.44  0.090 / 0.470
G19     42.1           47.1               12.3 +/-    0.60      16.1 +/-    0.60  0.030 / 0.050
G24     262.9          40.9               14.9 +/-    1.06      21.3 +/-    1.06  0.040 / 0.050
G28     122.2          17.2               13.9 +/-    2.28      32.7 +/-    2.28  0.060 / 0.040