PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-19:12:30
G02     60.6           32.5                6.8 +/-    1.63      11.4 +/-    1.63  0.030 / 0.040
G05     54.6           59.2               10.2 +/-    0.89      11.7 +/-    0.89  0.040 / 0.040
G12     183.8          30.2               12.9 +/-    2.05      22.4 +/-    2.05  0.040 / 0.050
G13     124.3          16.9               13.2 +/-    1.80      31.2 +/-    1.80  0.050 / 0.050
G15     162.4          14.7               14.0 +/-    2.35      35.2 +/-    2.35  0.230 / 0.330
G21     273.8          18.3               12.7 +/-    2.86      29.2 +/-    2.86  0.200 / 0.250
G25     233.8          50.1               10.6 +/-    2.55      13.3 +/-    2.55  0.130 / 0.300
G29     330.9          57.4               10.9 +/-    0.42      12.7 +/-    0.42  0.090 / 0.320