PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-19:13:10
G02     233.6          70.2               12.5 +/-    0.45      13.2 +/-    0.45  0.040 / 0.040
G05     175.0          12.3               16.8 +/-    5.83      44.6 +/-    5.83  0.040 / 0.030
G06     41.6           59.8               11.9 +/-    0.59      13.6 +/-    0.59  0.050 / 0.080
G12     322.0          51.6               11.3 +/-    1.07      13.9 +/-    1.07  0.070 / 0.100
G17     71.3           21.0               10.9 +/-    1.24      23.4 +/-    1.24  0.030 / 0.050
G19     57.4           37.9               11.3 +/-    1.17      16.9 +/-    1.17  0.040 / 0.040
G24     249.3          36.2               11.7 +/-    2.22      18.1 +/-    2.22  0.120 / 0.260
G25     316.7          15.3               10.4 +/-    2.72      25.6 +/-    2.72  0.180 / 0.300