PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-20:58:00
G01     126.4          12.2               20.6 +/-    3.03      54.8 +/-    3.03  0.050 / 0.050
G07     53.8           69.6               13.4 +/-    0.29      14.2 +/-    0.29  0.050 / 0.050
G08     52.2           42.9               11.8 +/-    1.02      16.4 +/-    1.02  0.270 / 0.400
G09     178.8          36.1               16.3 +/-    0.69      25.3 +/-    0.69  0.230 / 0.380
G11     120.2          35.3               15.2 +/-    1.10      23.9 +/-    1.10  0.030 / 0.030
G13     321.1          11.8                9.4 +/-   18.45      25.1 +/-   18.45  0.030 / 0.030
G17     201.3          12.6               22.9 +/-    3.77      60.3 +/-    3.77  0.080 / 0.080
G18     103.6          16.9               15.9 +/-    2.84      37.6 +/-    2.84  0.080 / 0.090
G28     278.2          53.7               13.8 +/-    2.46      16.7 +/-    2.46  0.030 / 0.030
G30     338.1          63.2               12.5 +/-    0.39      13.8 +/-    0.39  0.030 / 0.030