PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/19-00:27:50
G01     48.5           24.3               11.1 +/-    1.66      22.0 +/-    1.66  0.090 / 0.130
G06     178.0          26.5               18.9 +/-    1.57      35.6 +/-    1.57  0.080 / 0.160
G07     147.0          11.0               17.0 +/-    0.54      46.5 +/-    0.54  0.120 / 0.130
G11     44.9           15.6               10.7 +/-    2.73      26.3 +/-    2.73  0.120 / 0.150
G13     249.0          29.2               15.5 +/-    2.12      27.7 +/-    2.12  0.030 / 0.050
G15     281.1          15.6               12.0 +/-    1.29      29.5 +/-    1.29  0.040 / 0.040
G17     309.2          77.5               12.6 +/-    0.51      12.8 +/-    0.51  0.020 / 0.020
G19     250.4          61.5               13.6 +/-    0.74      15.2 +/-    0.74  0.020 / 0.020
G28     56.3           51.7               11.9 +/-    0.92      14.7 +/-    0.92  0.120 / 0.260
G30     149.8          36.3               16.6 +/-    1.42      25.8 +/-    1.42  0.160 / 0.350