PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-21:12:30
G02     29.6           57.8               10.4 +/-    0.51      12.0 +/-    0.51  0.060 / 0.070
G05     142.4          59.9               11.9 +/-    0.49      13.5 +/-    0.49  0.050 / 0.070
G06     51.8           18.1                7.2 +/-    0.80      16.6 +/-    0.80  0.050 / 0.070
G12     208.2          72.4               11.2 +/-    0.78      11.7 +/-    0.78  0.060 / 0.070
G19     97.8           10.1                9.0 +/-    1.37      25.1 +/-    1.37  0.020 / 0.040
G25     301.3          51.0               10.0 +/-    0.59      12.4 +/-    0.59  0.030 / 0.040
G29     305.8          27.1                8.9 +/-    1.50      16.6 +/-    1.50  0.090 / 0.310