PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-17:58:10
G03     198.5          43.6               14.3 +/-    1.50      19.7 +/-    1.50  0.090 / 0.250
G07     269.5          27.4               13.7 +/-    1.57      25.3 +/-    1.57  0.120 / 0.220
G09     315.9          38.7               11.2 +/-    1.14      16.6 +/-    1.14  0.040 / 0.080
G16     72.8           64.2               12.4 +/-    0.31      13.6 +/-    0.31  0.040 / 0.070
G22     182.8          26.4               13.2 +/-    1.17      24.9 +/-    1.17  0.060 / 0.140
G23     342.4          70.4               12.3 +/-    0.43      13.0 +/-    0.43  0.060 / 0.120
G26     47.5           36.9               10.0 +/-    0.60      15.3 +/-    0.60  0.040 / 0.050
G27     126.4          18.7               14.1 +/-    1.75      32.2 +/-    1.75  0.040 / 0.040