PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/11-01:12:30
G02     295.0          81.7                8.7 +/-    0.77       8.8 +/-    0.77  0.210 / 0.250
G05     167.2          25.3               13.0 +/-    1.62      25.3 +/-    1.62  0.140 / 0.160
G06     38.7           52.6                8.7 +/-    0.65      10.6 +/-    0.65  0.110 / 0.190
G12     319.5          58.7                9.5 +/-    0.93      10.9 +/-    0.93  0.100 / 0.150
G17     78.8           15.8                8.3 +/-    2.03      20.4 +/-    2.03  0.030 / 0.040
G19     66.1           32.5                7.7 +/-    2.10      12.7 +/-    2.10  0.030 / 0.040
G24     234.4          28.6               12.3 +/-    1.68      22.1 +/-    1.68  0.060 / 0.090
G25     317.4          21.5                7.3 +/-    1.85      15.6 +/-    1.85  0.050 / 0.090