PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-16:28:10
G03     244.5          70.9                9.7 +/-    0.40      10.2 +/-    0.40  0.110 / 0.290
G09     300.0          13.9                7.9 +/-    1.28      20.1 +/-    1.28  0.170 / 0.300
G14     95.6           16.8                9.5 +/-    2.07      22.5 +/-    2.07  0.180 / 0.310
G16     143.9          52.2               11.7 +/-    0.55      14.4 +/-    0.55  0.110 / 0.310
G22     194.7          58.6               10.7 +/-    0.94      12.4 +/-    0.94  0.040 / 0.040
G23     314.5          44.1                9.0 +/-    0.82      12.3 +/-    0.82  0.040 / 0.040
G26     84.6           56.1                9.2 +/-    0.57      10.9 +/-    0.57  0.030 / 0.040
G31     49.2           25.6                7.6 +/-    1.83      14.6 +/-    1.83  0.030 / 0.050