PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-22:13:10
G02     54.6           36.6                9.0 +/-    1.40      13.9 +/-    1.40  0.050 / 0.060
G05     66.9           64.9               10.7 +/-    0.59      11.7 +/-    0.59  0.060 / 0.050
G12     186.8          40.5               13.9 +/-    1.66      20.1 +/-    1.66  0.080 / 0.070
G13     131.2          11.2               13.7 +/-    4.36      37.1 +/-    4.36  0.050 / 0.080
G21     267.0          13.4               15.3 +/-    6.85      39.6 +/-    6.85  0.190 / 0.390
G25     246.9          55.5               10.5 +/-    2.00      12.5 +/-    2.00  0.180 / 0.300
G29     326.0          50.6               10.2 +/-    1.04      12.8 +/-    1.04  0.050 / 0.070