PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-15:43:00
G01     222.6          13.9               10.2 +/-    2.40      26.0 +/-    2.40  0.150 / 0.330
G03     264.3          72.0               11.0 +/-    0.36      11.5 +/-    0.36  0.160 / 0.580
G14     90.7           20.6                8.9 +/-    1.63      19.2 +/-    1.63  0.130 / 0.260
G16     149.4          46.4               12.5 +/-    0.94      16.5 +/-    0.94  0.120 / 0.240
G22     199.5          64.4               10.6 +/-    0.40      11.6 +/-    0.40  0.050 / 0.030
G23     310.2          39.9                7.8 +/-    1.29      11.4 +/-    1.29  0.050 / 0.040
G26     95.8           56.1               11.3 +/-    0.83      13.3 +/-    0.83  0.040 / 0.040
G31     46.6           30.1                8.0 +/-    1.40      14.1 +/-    1.40  0.050 / 0.040