PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-19:43:10
G02     23.0           63.3               11.3 +/-    0.84      12.5 +/-    0.84  0.040 / 0.040
G05     155.9          53.5               14.6 +/-    0.92      17.7 +/-    0.92  0.040 / 0.040
G06     50.6           21.0                9.7 +/-    2.83      20.9 +/-    2.83  0.020 / 0.030
G12     210.0          74.2               12.3 +/-    0.63      12.8 +/-    0.63  0.040 / 0.030
G19     95.7           12.1               10.4 +/-    1.15      27.8 +/-    1.15  0.030 / 0.040
G20     197.3          20.7               13.4 +/-    1.58      29.0 +/-    1.58  0.050 / 0.040
G25     301.8          53.1               11.6 +/-    0.87      14.1 +/-    0.87  0.150 / 0.110
G29     303.7          25.1               10.9 +/-    1.26      21.2 +/-    1.26  0.090 / 0.140