PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/12-19:58:10
G01     127.1          11.7               17.7 +/-    2.31      47.5 +/-    2.31  0.040 / 0.050
G07     51.3           69.7               13.8 +/-    0.38      14.6 +/-    0.38  0.030 / 0.050
G08     52.9           43.5               12.4 +/-    0.69      17.0 +/-    0.69  0.330 / 0.330
G09     178.8          36.7               16.1 +/-    0.81      24.8 +/-    0.81  0.230 / 0.350
G11     120.5          34.9               16.4 +/-    0.82      26.1 +/-    0.82  0.030 / 0.030
G13     321.3          11.3               -0.1 +/-   23.82      -0.2 +/-   23.82  0.030 / 0.030
G17     201.4          11.1               -0.2 +/-   35.82      -0.6 +/-   35.82  0.150 / 0.240
G18     104.3          16.6               13.7 +/-    2.00      32.9 +/-    2.00  0.150 / 0.260
G28     276.9          53.2               14.2 +/-    3.42      17.2 +/-    3.42  0.030 / 0.030
G30     336.1          62.2               13.4 +/-    0.71      14.9 +/-    0.71  0.030 / 0.030