PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-16:27:50
G02     274.1          79.3                9.2 +/-    0.67       9.3 +/-    0.67  0.080 / 0.170
G05     168.9          23.6                8.0 +/-    1.95      16.2 +/-    1.95  0.100 / 0.200
G06     39.8           48.6                8.6 +/-    0.96      11.1 +/-    0.96  0.110 / 0.150
G12     319.9          60.7                8.4 +/-    1.02       9.5 +/-    1.02  0.110 / 0.150
G17     76.2           19.9                8.7 +/-    1.97      19.2 +/-    1.97  0.070 / 0.100
G19     66.5           31.4                8.1 +/-    1.68      13.8 +/-    1.68  0.050 / 0.040
G24     237.3          29.2               11.3 +/-    1.09      20.2 +/-    1.09  0.040 / 0.030
G25     317.3          19.1                7.6 +/-    2.97      17.1 +/-    2.97  0.040 / 0.020