PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/19-18:28:00
G03     213.7          60.5               12.4 +/-    1.54      14.0 +/-    1.54  0.110 / 0.200
G07     255.6          16.8               13.4 +/-    1.92      31.8 +/-    1.92  0.130 / 0.230
G09     308.5          25.3                9.6 +/-    1.74      18.6 +/-    1.74  0.030 / 0.050
G16     115.4          64.1               13.4 +/-    0.81      14.7 +/-    0.81  0.040 / 0.040
G22     188.4          43.8               12.3 +/-    0.67      16.9 +/-    0.67  0.120 / 0.120
G23     325.5          55.6               11.7 +/-    0.61      13.8 +/-    0.61  0.100 / 0.160
G26     61.6           50.6               10.6 +/-    1.07      13.2 +/-    1.07  0.030 / 0.030
G31     56.5           15.4               10.0 +/-    2.60      24.7 +/-    2.60  0.030 / 0.040