PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/09-00:42:50
G02     226.0          69.8               11.8 +/-    0.44      12.5 +/-    0.44  0.070 / 0.080
G05     174.0          10.1               -8.9 +/-   17.51     -24.7 +/-   17.51  0.060 / 0.090
G06     45.1           70.3               11.8 +/-    0.54      12.5 +/-    0.54  0.270 / 0.360
G12     319.8          41.4               10.6 +/-    0.45      15.0 +/-    0.45  0.400 / 0.390
G17     64.8           25.9               12.0 +/-    3.48      23.0 +/-    3.48  0.060 / 0.040
G19     48.7           43.4               12.6 +/-    1.37      17.4 +/-    1.37  0.050 / 0.060
G24     252.2          38.6               13.8 +/-    2.10      20.5 +/-    2.10  0.040 / 0.050
G28     127.0          10.7               15.8 +/-    2.24      43.5 +/-    2.24  0.040 / 0.050