PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-17:28:00
G03     228.6          68.4               13.5 +/-    0.66      14.4 +/-    0.66  0.030 / 0.040
G09     302.4          16.3               11.1 +/-    2.51      26.8 +/-    2.51  0.030 / 0.050
G14     98.1           17.2               12.7 +/-    1.96      29.9 +/-    1.96  0.120 / 0.240
G16     128.6          58.3               15.6 +/-    0.70      18.0 +/-    0.70  0.100 / 0.270
G22     192.2          55.0               14.3 +/-    0.57      17.1 +/-    0.57  0.050 / 0.050
G23     320.3          50.3               14.2 +/-    0.89      17.9 +/-    0.89  0.060 / 0.060
G26     69.7           51.4               13.7 +/-    1.07      17.0 +/-    1.07  0.270 / 0.220
G31     52.0           19.4               12.9 +/-    2.27      28.7 +/-    2.27  0.130 / 0.160