PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-15:57:40
G01     225.6          17.0                9.7 +/-    3.01      23.1 +/-    3.01  0.030 / 0.050
G03     280.0          70.7                9.9 +/-    0.63      10.4 +/-    0.63  0.030 / 0.050
G14     87.0           23.2                7.5 +/-    1.15      15.2 +/-    1.15  0.120 / 0.260
G16     153.0          41.9               13.0 +/-    0.55      18.4 +/-    0.55  0.120 / 0.260
G22     206.6          68.8                9.6 +/-    0.92      10.3 +/-    0.92  0.100 / 0.210
G23     307.0          36.7                9.0 +/-    1.55      13.9 +/-    1.55  0.130 / 0.310
G26     104.7          55.3                9.8 +/-    0.61      11.6 +/-    0.61  0.070 / 0.100
G31     44.9           34.1                7.0 +/-    0.59      11.4 +/-    0.59  0.070 / 0.110