PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-20:57:50
G02     232.7          72.5               12.7 +/-    0.30      13.2 +/-    0.30  0.040 / 0.040
G05     172.6          13.1               19.6 +/-    2.37      50.9 +/-    2.37  0.030 / 0.040
G06     41.9           63.6               11.3 +/-    0.35      12.4 +/-    0.35  0.110 / 0.090
G12     320.5          45.4               10.8 +/-    1.12      14.4 +/-    1.12  0.070 / 0.080
G17     66.8           25.3               11.2 +/-    2.07      21.7 +/-    2.07  0.080 / 0.060
G19     53.3           40.3               10.1 +/-    1.84      14.6 +/-    1.84  0.060 / 0.060
G24     249.2          36.8               15.6 +/-    1.59      24.0 +/-    1.59  0.090 / 0.100