PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-21:27:50
G01     123.7          13.8               14.4 +/-    2.23      36.8 +/-    2.23  0.030 / 0.030
G07     74.5           65.6               10.7 +/-    0.59      11.6 +/-    0.59  0.030 / 0.030
G08     47.1           34.8                9.7 +/-    0.82      15.4 +/-    0.82  0.080 / 0.090
G09     178.0          32.8               12.4 +/-    1.50      20.5 +/-    1.50  0.100 / 0.090
G11     112.0          37.9               12.6 +/-    1.09      19.0 +/-    1.09  0.110 / 0.420
G13     319.8          15.4               11.4 +/-    3.66      28.2 +/-    3.66  0.110 / 0.380
G17     199.4          20.1               12.2 +/-    2.33      26.7 +/-    2.33  0.100 / 0.070
G18     96.8           18.3               11.9 +/-    1.60      27.4 +/-    1.60  0.090 / 0.080
G28     277.7          52.1               10.1 +/-    2.86      12.4 +/-    2.86  0.100 / 0.230
G30     337.9          64.0               10.9 +/-    0.68      12.0 +/-    0.68  0.110 / 0.230