PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-17:57:40
G02     53.6           38.2               10.6 +/-    0.61      15.8 +/-    0.61  0.150 / 0.360
G05     67.8           66.1               10.8 +/-    0.35      11.7 +/-    0.35  0.180 / 0.380
G12     185.0          38.1               12.2 +/-    2.34      18.3 +/-    2.34  0.090 / 0.120
G13     130.4          11.7                7.7 +/-   25.20      20.7 +/-   25.20  0.080 / 0.100
G21     267.5          13.4               10.5 +/-   10.99      27.2 +/-   10.99  0.040 / 0.070
G25     246.2          55.1               12.1 +/-    0.61      14.4 +/-    0.61  0.040 / 0.060
G29     325.3          49.7               12.5 +/-    0.91      15.8 +/-    0.91  0.040 / 0.040