PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-18:42:40
G03     185.6          12.0               15.7 +/-    4.79      42.0 +/-    4.79  0.150 / 0.160
G07     302.8          46.3               12.2 +/-    2.59      16.2 +/-    2.59  0.160 / 0.140
G08     132.9          35.3               16.1 +/-    1.23      25.5 +/-    1.23  0.040 / 0.020
G09     316.8          70.7               13.2 +/-    0.63      13.9 +/-    0.63  0.040 / 0.030
G16     42.1           36.3               11.1 +/-    0.73      17.2 +/-    0.73  0.060 / 0.050
G23     135.4          72.8               12.9 +/-    0.66      13.4 +/-    0.66  0.050 / 0.070
G27     91.9           36.7               13.9 +/-    1.11      21.4 +/-    1.11  0.060 / 0.090
G30     280.3          18.0               14.2 +/-    1.78      32.8 +/-    1.78  0.060 / 0.090