PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/15-19:27:40
G03     198.0          40.9               11.1 +/-    0.68      15.9 +/-    0.68  0.120 / 0.170
G07     272.1          28.7               10.7 +/-    1.91      19.3 +/-    1.91  0.090 / 0.150
G08     153.2          11.6                9.4 +/-    8.77      25.3 +/-    8.77  0.040 / 0.040
G09     317.3          42.1               10.9 +/-    0.43      15.3 +/-    0.43  0.030 / 0.050
G16     64.3           61.3                9.8 +/-    0.64      11.0 +/-    0.64  0.090 / 0.090
G22     182.7          24.1               10.8 +/-    1.30      21.6 +/-    1.30  0.080 / 0.110
G23     346.3          73.0               10.7 +/-    0.54      11.1 +/-    0.54  0.050 / 0.060
G26     46.5           35.3                7.6 +/-    1.28      11.9 +/-    1.28  0.050 / 0.050
G27     124.0          20.8               11.2 +/-    1.51      24.1 +/-    1.51  0.230 / 0.390