PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-17:12:50
G03     196.2          39.8               11.3 +/-    0.63      16.5 +/-    0.63  0.090 / 0.130
G07     272.6          29.7               10.9 +/-    1.50      19.1 +/-    1.50  0.120 / 0.140
G08     153.7          11.4               11.7 +/-   21.71      31.6 +/-   21.71  0.050 / 0.060
G09     317.0          41.3               10.1 +/-    0.64      14.3 +/-    0.64  0.050 / 0.070
G16     66.0           62.4                9.6 +/-    0.61      10.7 +/-    0.61  0.100 / 0.170
G22     181.4          22.8               11.5 +/-    0.68      23.7 +/-    0.68  0.090 / 0.150
G23     348.3          73.6               10.5 +/-    0.65      10.9 +/-    0.65  0.080 / 0.060
G26     46.0           33.4                9.4 +/-    0.69      15.3 +/-    0.69  0.070 / 0.080
G27     123.6          20.9               12.7 +/-    1.58      27.4 +/-    1.58  0.080 / 0.190