PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-21:57:50
G05     51.3           14.7               14.1 +/-    1.29      35.4 +/-    1.29  0.110 / 0.260
G10     242.4          18.2               24.2 +/-    1.99      55.6 +/-    1.99  0.100 / 0.260
G13     66.2           36.0               17.6 +/-    0.67      27.5 +/-    0.67  0.040 / 0.070
G15     109.7          56.6               22.7 +/-    0.34      26.7 +/-    0.34  0.040 / 0.080
G16     308.6          13.3               14.7 +/-    1.55      38.2 +/-    1.55  0.090 / 0.330
G18     254.9          48.7               23.7 +/-    1.34      30.4 +/-    1.34  0.090 / 0.310
G20     35.8           57.2               19.0 +/-    0.66      22.2 +/-    0.66  0.080 / 0.230
G21     322.5          53.7               20.1 +/-    1.37      24.2 +/-    1.37  0.070 / 0.190
G26     281.2          18.4               17.0 +/-    1.68      39.0 +/-    1.68  0.060 / 0.120
G29     159.5          58.2               23.8 +/-    0.79      27.5 +/-    0.79  0.050 / 0.110