PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-18:57:30
G02     202.1          30.0               15.6 +/-    1.11      27.3 +/-    1.11  0.070 / 0.110
G06     165.5          63.8               14.0 +/-    0.84      15.4 +/-    0.84  0.070 / 0.100
G17     30.6           53.3               11.6 +/-    0.92      14.0 +/-    0.92  0.090 / 0.150
G19     353.7          67.4               11.2 +/-    0.75      12.1 +/-    0.75  0.090 / 0.160
G24     301.9          35.8               12.5 +/-    1.11      19.5 +/-    1.11  0.070 / 0.080
G28     95.0           38.4               12.3 +/-    0.84      18.3 +/-    0.84  0.100 / 0.120