PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-00:43:10
G05     52.3           11.7                7.1 +/-    0.99      19.0 +/-    0.99  0.150 / 0.310
G10     243.1          18.9               11.4 +/-    1.57      25.8 +/-    1.57  0.140 / 0.300
G13     64.5           35.4                9.7 +/-    0.73      15.3 +/-    0.73  0.190 / 0.200
G15     111.2          57.2               13.9 +/-    0.41      16.2 +/-    0.41  0.220 / 0.250
G16     306.3          14.1                7.8 +/-    1.75      19.9 +/-    1.75  0.070 / 0.070
G18     255.5          48.3               12.0 +/-    0.74      15.5 +/-    0.74  0.080 / 0.070
G20     37.3           55.5                9.5 +/-    0.33      11.3 +/-    0.33  0.040 / 0.040
G21     322.4          53.6               10.8 +/-    1.56      13.1 +/-    1.56  0.030 / 0.040
G26     278.6          18.5                8.7 +/-    1.78      20.0 +/-    1.78  0.080 / 0.170
G29     161.0          58.7               12.1 +/-    0.98      13.9 +/-    0.98  0.130 / 0.190