PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/09-16:42:50
G03     198.4          42.8               11.7 +/-    0.75      16.3 +/-    0.75  0.030 / 0.030
G07     267.7          22.9               12.2 +/-    2.57      25.0 +/-    2.57  0.030 / 0.030
G09     316.0          38.7               11.2 +/-    2.04      16.7 +/-    2.04  0.090 / 0.100
G16     62.7           59.2               11.3 +/-    0.63      12.9 +/-    0.63  0.080 / 0.120
G22     181.3          25.2               11.0 +/-    0.79      21.4 +/-    0.79  0.030 / 0.040
G23     356.5          74.6               11.7 +/-    0.49      12.1 +/-    0.49  0.030 / 0.040
G26     45.3           30.8                9.9 +/-    1.17      17.0 +/-    1.17  0.110 / 0.150
G27     123.2          19.9               13.6 +/-    1.24      30.1 +/-    1.24  0.110 / 0.140