PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/16-19:27:40
G03     197.0          39.0               11.3 +/-    1.00      16.7 +/-    1.00  0.050 / 0.080
G07     273.8          29.8               10.2 +/-    1.78      18.0 +/-    1.78  0.070 / 0.090
G08     152.1          13.0               12.5 +/-    2.23      32.6 +/-    2.23  0.070 / 0.150
G09     317.9          43.8                9.8 +/-    0.76      13.4 +/-    0.76  0.070 / 0.120
G16     61.1           60.0               10.8 +/-    0.49      12.3 +/-    0.49  0.090 / 0.120
G22     182.1          22.4               10.7 +/-    1.98      22.3 +/-    1.98  0.110 / 0.120
G23     349.6          74.7               10.0 +/-    0.66      10.3 +/-    0.66  0.040 / 0.040
G26     45.8           33.7                9.1 +/-    1.27      14.9 +/-    1.27  0.040 / 0.040
G27     122.5          22.1               10.5 +/-    2.38      22.0 +/-    2.38  0.040 / 0.030