PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-23:12:30
G10     250.9          28.5               13.9 +/-    1.78      25.1 +/-    1.78  0.040 / 0.060
G13     52.6           28.6               10.2 +/-    2.26      18.5 +/-    2.26  0.040 / 0.040
G15     84.9           57.3               12.7 +/-    0.91      14.8 +/-    0.91  0.080 / 0.150
G16     295.9          15.5                8.3 +/-    1.22      20.4 +/-    1.22  0.060 / 0.160
G20     270.3          50.6               12.0 +/-    2.57      15.0 +/-    2.57  0.040 / 0.040
G21     333.9          59.8               11.4 +/-    0.83      13.0 +/-    0.83  0.030 / 0.040
G26     268.1          15.3               10.6 +/-    3.79      26.2 +/-    3.79  0.100 / 0.490
G29     163.3          49.1               14.4 +/-    0.66      18.4 +/-    0.66  0.090 / 0.350