PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-18:57:50
G07     54.5           67.5               11.4 +/-    0.71      12.2 +/-    0.71  0.150 / 0.120
G08     53.8           42.2               10.2 +/-    1.06      14.4 +/-    1.06  0.110 / 0.100
G09     179.4          42.4               13.4 +/-    0.68      18.8 +/-    0.68  0.040 / 0.040
G11     121.6          33.3               14.0 +/-    0.75      22.9 +/-    0.75  0.050 / 0.030
G17     198.8          11.1               -1.9 +/-   26.10      -5.2 +/-   26.10  0.030 / 0.040
G18     105.6          14.3               12.9 +/-    2.42      32.5 +/-    2.42  0.030 / 0.040
G23     160.7          12.4               12.7 +/-    3.00      33.6 +/-    3.00  0.090 / 0.070
G27     38.5           12.6                8.6 +/-    1.53      22.8 +/-    1.53  0.090 / 0.070
G28     265.1          46.8               12.6 +/-    4.91      16.6 +/-    4.91  0.150 / 0.220
G30     329.1          57.9               11.4 +/-    0.67      13.2 +/-    0.67  0.130 / 0.190