PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-17:42:30
G03     215.1          62.9               14.3 +/-    1.22      15.9 +/-    1.22  0.040 / 0.040
G09     306.1          21.3               13.1 +/-    2.16      27.9 +/-    2.16  0.030 / 0.040
G14     103.4          12.8               14.7 +/-    2.60      38.6 +/-    2.60  0.170 / 0.370
G16     114.7          62.6               16.7 +/-    0.70      18.6 +/-    0.70  0.160 / 0.350
G22     188.8          47.8               15.1 +/-    0.52      19.6 +/-    0.52  0.050 / 0.070
G23     326.0          55.7               15.2 +/-    0.54      18.0 +/-    0.54  0.050 / 0.070
G26     60.5           47.7               13.9 +/-    0.59      18.1 +/-    0.59  0.110 / 0.170
G31     55.5           14.5               12.5 +/-    3.23      31.6 +/-    3.23  0.210 / 0.300