PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-17:12:40
G03     212.8          60.7               12.7 +/-    0.83      14.4 +/-    0.83  0.130 / 0.180
G07     255.3          16.9               13.9 +/-    1.28      33.0 +/-    1.28  0.170 / 0.260
G09     308.1          24.4                9.6 +/-    1.54      19.1 +/-    1.54  0.080 / 0.130
G16     119.5          63.7               10.6 +/-    0.41      11.7 +/-    0.41  0.090 / 0.190
G22     187.6          43.6               11.9 +/-    0.77      16.4 +/-    0.77  0.030 / 0.040
G23     325.4          55.4                9.6 +/-    0.44      11.4 +/-    0.44  0.040 / 0.040
G26     61.4           50.1                9.1 +/-    0.77      11.4 +/-    0.77  0.040 / 0.040
G31     56.4           15.0                7.3 +/-    3.03      18.2 +/-    3.03  0.040 / 0.040