PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-20:42:40
G02     354.8          75.8                7.6 +/-    0.47       7.9 +/-    0.47  0.130 / 0.150
G05     161.9          37.6                9.5 +/-    1.33      14.4 +/-    1.33  0.080 / 0.130
G06     42.1           37.1                7.0 +/-    1.01      10.6 +/-    1.01  0.040 / 0.030
G12     306.5          72.7                7.4 +/-    0.76       7.7 +/-    0.76  0.040 / 0.030
G17     88.1           10.4                8.6 +/-    2.18      23.9 +/-    2.18  0.180 / 0.450
G19     78.6           23.8                9.1 +/-    2.56      18.4 +/-    2.56  0.250 / 0.580
G24     225.5          19.9               10.7 +/-    3.35      23.5 +/-    3.35  0.030 / 0.030
G25     316.3          31.7                7.8 +/-    1.33      13.1 +/-    1.33  0.030 / 0.040
G29     289.1          12.4               11.3 +/-    1.10      29.8 +/-    1.10  0.180 / 0.230