PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-18:58:00
G07     315.7          52.1               13.4 +/-    0.71      16.4 +/-    0.71  0.040 / 0.060
G08     122.0          43.2               15.4 +/-    1.37      21.3 +/-    1.37  0.050 / 0.050
G09     292.7          80.7               14.9 +/-    0.54      15.1 +/-    0.54  0.190 / 0.390
G16     42.2           26.7                9.4 +/-    2.85      17.6 +/-    2.85  0.150 / 0.480
G23     147.2          61.5               15.4 +/-    0.34      17.2 +/-    0.34  0.170 / 0.180
G27     77.8           37.9               13.6 +/-    1.30      20.4 +/-    1.30  0.100 / 0.250
G28     225.2          11.7                1.7 +/-   28.71       4.6 +/-   28.71  0.030 / 0.030
G30     288.5          24.5               13.7 +/-    2.30      27.1 +/-    2.30  0.040 / 0.030