PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-19:43:00
G07     340.5          60.7               13.9 +/-    0.51      15.7 +/-    0.51  0.050 / 0.040
G08     97.0           51.2               13.3 +/-    0.64      16.5 +/-    0.64  0.040 / 0.040
G09     194.0          74.8               15.7 +/-    0.79      16.2 +/-    0.79  0.150 / 0.240
G11     144.6          13.9               16.7 +/-    1.30      42.6 +/-    1.30  0.110 / 0.210
G16     46.1           12.3                9.4 +/-    2.80      24.9 +/-    2.80  0.050 / 0.020
G23     155.9          43.4               14.2 +/-    0.96      19.6 +/-    0.96  0.050 / 0.030
G27     57.4           33.5               10.8 +/-    0.75      17.6 +/-    0.75  0.050 / 0.090
G28     235.7          25.6               15.7 +/-    2.28      30.3 +/-    2.28  0.060 / 0.090
G30     301.8          35.2               13.2 +/-    1.81      20.9 +/-    1.81  0.030 / 0.040