PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-15:42:30
G07     343.6          61.6               13.1 +/-    0.56      14.7 +/-    0.56  0.050 / 0.050
G08     89.0           53.4               12.9 +/-    0.66      15.6 +/-    0.66  0.050 / 0.040
G09     184.1          65.6               13.5 +/-    0.88      14.7 +/-    0.88  0.030 / 0.040
G11     141.6          17.6               12.0 +/-    2.24      27.9 +/-    2.24  0.030 / 0.040
G23     156.4          30.7               12.5 +/-    1.36      21.7 +/-    1.36  0.100 / 0.070
G27     48.8           27.4                9.3 +/-    2.19      17.2 +/-    2.19  0.080 / 0.090
G28     243.6          35.2               15.8 +/-    1.99      24.9 +/-    1.99  0.060 / 0.100
G30     308.1          40.3               13.7 +/-    1.35      19.8 +/-    1.35  0.070 / 0.100