PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/27-06:58:00
G01     220.7          12.8                5.3 +/-    2.71      13.8 +/-    2.71  0.050 / 0.040
G03     269.0          70.6                4.7 +/-    0.69       5.0 +/-    0.69  0.050 / 0.040
G09     297.2          10.8              -12.6 +/-   19.58     -34.7 +/-   19.58  0.140 / 0.450
G14     90.9           21.3                2.9 +/-    1.79       6.2 +/-    1.79  0.140 / 0.280
G16     139.9          50.2                6.5 +/-    0.68       8.2 +/-    0.68  0.110 / 0.260
G22     206.9          65.3                5.5 +/-    0.64       6.0 +/-    0.64  0.130 / 0.250
G23     314.7          45.4                4.6 +/-    0.86       6.2 +/-    0.86  0.230 / 0.000
G26     86.1           54.3                5.7 +/-    0.68       6.8 +/-    0.68  0.240 / 0.380
G31     48.3           25.7                3.3 +/-    2.63       6.4 +/-    2.63  0.040 / 0.060