PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-17:12:30
G02     6.9            72.3               12.2 +/-    0.26      12.8 +/-    0.26  0.040 / 0.070
G05     164.5          40.2               15.6 +/-    1.25      22.7 +/-    1.25  0.050 / 0.090
G06     44.7           32.3               10.2 +/-    0.95      17.1 +/-    0.95  0.030 / 0.020
G12     279.4          78.7               12.4 +/-    0.45      12.6 +/-    0.45  0.030 / 0.020
G19     85.1           19.8               11.8 +/-    1.14      26.2 +/-    1.14  0.050 / 0.060
G24     222.7          16.4               15.3 +/-    4.10      36.8 +/-    4.10  0.060 / 0.050
G25     313.5          41.1               13.2 +/-    0.97      18.8 +/-    0.97  0.120 / 0.140
G29     295.0          17.7               13.4 +/-    2.20      31.3 +/-    2.20  0.150 / 0.180