PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/02-16:42:40
G01     227.0          18.3               11.8 +/-    1.90      27.1 +/-    1.90  0.040 / 0.050
G03     286.7          69.2                9.2 +/-    0.46       9.8 +/-    0.46  0.040 / 0.050
G14     85.4           24.3                9.6 +/-    0.58      19.0 +/-    0.58  0.080 / 0.230
G16     153.4          40.5               12.6 +/-    0.94      18.2 +/-    0.94  0.100 / 0.210
G22     212.3          70.8               10.7 +/-    0.55      11.3 +/-    0.55  0.030 / 0.040
G23     305.4          35.1                9.2 +/-    1.42      14.6 +/-    1.42  0.040 / 0.040
G26     109.3          54.7                9.8 +/-    0.44      11.7 +/-    0.44  0.070 / 0.130
G31     44.0           36.2                7.1 +/-    1.23      11.0 +/-    1.23  0.070 / 0.110