PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-21:27:50
G02     355.9          75.7                9.1 +/-    0.35       9.4 +/-    0.35  0.130 / 0.140
G05     161.7          37.7               11.7 +/-    0.75      17.7 +/-    0.75  0.100 / 0.130
G06     42.0           37.5                8.4 +/-    1.15      12.7 +/-    1.15  0.040 / 0.030
G12     306.7          72.4                9.0 +/-    0.72       9.4 +/-    0.72  0.030 / 0.030
G17     88.2           10.1               11.3 +/-    3.28      31.6 +/-    3.28  0.240 / 0.580
G19     78.6           23.9               10.8 +/-    2.55      21.7 +/-    2.55  0.330 / 0.680
G24     225.3          19.9               13.3 +/-    7.08      29.4 +/-    7.08  0.030 / 0.030
G25     316.3          31.9                8.9 +/-    1.14      14.9 +/-    1.14  0.030 / 0.030
G29     289.3          12.7               12.7 +/-    1.70      33.4 +/-    1.70  0.310 / 0.360