PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-16:12:30
G02     249.0          77.1               11.4 +/-    0.46      11.6 +/-    0.46  0.080 / 0.130
G05     174.0          16.0               14.7 +/-    1.82      35.8 +/-    1.82  0.100 / 0.140
G06     40.1           56.1                9.8 +/-    0.52      11.5 +/-    0.52  0.090 / 0.210
G12     321.4          55.1               10.2 +/-    0.75      12.1 +/-    0.75  0.190 / 0.180
G17     75.3           18.1               10.7 +/-    1.25      24.6 +/-    1.25  0.030 / 0.040
G19     62.2           34.9               11.0 +/-    1.12      17.5 +/-    1.12  0.040 / 0.030
G24     243.8          33.3               12.5 +/-    2.14      20.5 +/-    2.14  0.140 / 0.200
G25     317.4          18.2               10.2 +/-    1.54      23.4 +/-    1.54  0.190 / 0.310