PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-16:28:00
G07     10.8           67.6               14.5 +/-    0.77      15.6 +/-    0.77  0.060 / 0.040
G08     67.2           50.4               13.6 +/-    0.85      17.1 +/-    0.85  0.060 / 0.050
G09     180.0          51.2               16.5 +/-    0.35      20.5 +/-    0.35  0.030 / 0.030
G11     132.1          26.3               13.0 +/-    1.37      24.7 +/-    1.37  0.030 / 0.030
G23     158.6          17.4               13.6 +/-    1.11      31.8 +/-    1.11  0.060 / 0.050
G27     41.0           18.1               11.9 +/-    2.18      27.4 +/-    2.18  0.050 / 0.050
G28     257.3          44.6               16.3 +/-    2.95      22.0 +/-    2.95  0.080 / 0.160
G30     319.4          49.9               13.4 +/-    0.41      17.0 +/-    0.41  0.130 / 0.170