PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-11:13:10
G07     327.7          56.0                3.0 +/-    0.54       3.5 +/-    0.54  0.150 / 0.120
G08     103.4          50.6                4.3 +/-    0.55       5.3 +/-    0.55  0.170 / 0.100
G09     190.1          75.9                4.0 +/-    0.46       4.1 +/-    0.46  0.030 / 0.030
G11     147.4          11.3                2.5 +/-    9.75       6.8 +/-    9.75  0.030 / 0.040
G23     154.2          45.1                5.3 +/-    0.94       7.2 +/-    0.94  0.060 / 0.060
G27     59.0           33.6                3.4 +/-    1.37       5.5 +/-    1.37  0.050 / 0.060
G28     234.4          26.4                5.8 +/-    2.80      10.9 +/-    2.80  0.050 / 0.060
G30     298.4          31.7                4.9 +/-    1.07       8.4 +/-    1.07  0.040 / 0.070